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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" My mother has one. 2.3 I believe | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" What tyre/wheel size? There's several to choose from and they're all different. | |||
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"Normally on a plate on one of the door pillars!" I will have another look. Cldnt see anything yesterday | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" Pop in when your passing, i'm sure I could pump something Have you tried in google, Toyota yaris tyre pressure? | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" Check inside the door it's normall just below the lock catch failing that just pop into your local Kwik fit they will help you | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" Take care driving its really windy here (Near Llandudno) x | |||
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"60 DPI front tyres 70 DPI rear tyres" is that meant to be PSI? | |||
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"60 DPI front tyres 70 DPI rear tyres is that meant to be PSI? " And I hope she has set off, before reading it, if not. | |||
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"60 DPI front tyres 70 DPI rear tyres is that meant to be PSI? And I hope she has set off, before reading it, if not. " | |||
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"60 DPI front tyres 70 DPI rear tyres is that meant to be PSI? And I hope she has set off, before reading it, if not. " AS STICKING THAT MUCH AIR IN A TYRE WOULD PROBABLY CAUSE A MAJOR ACCIDENT. | |||
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"60 DPI front tyres 70 DPI rear tyres is that meant to be PSI? And I hope she has set off, before reading it, if not. AS STICKING THAT MUCH AIR IN A TYRE WOULD PROBABLY CAUSE A MAJOR ACCIDENT." Proably went out and looked at his lorry tyre pressure, lol | |||
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"60 DPI front tyres 70 DPI rear tyres is that meant to be PSI? And I hope she has set off, before reading it, if not. AS STICKING THAT MUCH AIR IN A TYRE WOULD PROBABLY CAUSE A MAJOR ACCIDENT. Proably went out and looked at his lorry tyre pressure, lol" lol | |||
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"Normally on a plate on one of the door pillars! I will have another look. Cldnt see anything yesterday" Did you find out? Have you set off? Are you alright? The suspense is killing me | |||
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"I hate to point out the obvious... But it's usually wrote on tyre " I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements" . Mines written on the side of the tyre... I just looked | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements. Mines written on the side of the tyre... I just looked " That is the maximum pressure the tyre can be inflated to. I find it somewhat alarming the ignorance some people have about basic car maintenance. | |||
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"Don't some garages have charts up with tyre presures on them ? " Yes it's called Google | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements. Mines written on the side of the tyre... I just looked That is the maximum pressure the tyre can be inflated to. I find it somewhat alarming the ignorance some people have about basic car maintenance." ..Seen as it was an emergency could she not have used that temporarily? | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements. Mines written on the side of the tyre... I just looked That is the maximum pressure the tyre can be inflated to. I find it somewhat alarming the ignorance some people have about basic car maintenance." I have a Qashqai can you please tell me what kind of fuel to put in it please | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements" Now these points are useful to the OP I'd go with the ranges above, 29-31 will be safe as well, temporarily. Or ring a Toyota garage if you're really unsure and want total reassurance. | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements Now these points are useful to the OP I'd go with the ranges above, 29-31 will be safe as well, temporarily. Or ring a Toyota garage if you're really unsure and want total reassurance. " or the op could go to ats or quick fit and ask them | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements. Mines written on the side of the tyre... I just looked That is the maximum pressure the tyre can be inflated to. I find it somewhat alarming the ignorance some people have about basic car maintenance. I have a Qashqai can you please tell me what kind of fuel to put in it please" Na just scrap it | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" Look on the door frame, the tyre pressure should be there. Safe Journey. | |||
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"I hate to point out the obvious... But it's usually wrote on tyre I hate to point out the obvious but you are talking absolute bollocks. The same size of tyre can fit various makes of cars with greatly differing tyre pressure requirements. Mines written on the side of the tyre... I just looked That is the maximum pressure the tyre can be inflated to. I find it somewhat alarming the ignorance some people have about basic car maintenance. I have a Qashqai can you please tell me what kind of fuel to put in it please Na just scrap it" Bit it is Japanese!! | |||
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"The max pressure written on a tyre sidewall Is the max pressure the tyre can handle!! Not the pressure the car or wheel assembly is designed to run at,, setting the pressure to what it says on the tyre is dangerous and very stupid as it means your over inflated with a smaller than optimal contact patch on the road,,, Aka you will be in a ditch in no time " . Max tyre pressure written on my tyre is 45psi it's a 17x235x55 my recommended pressure for my vehicle is 38 in the front and 36 in the rear... Are you seriously telling me if I put 45 in temporarily I'll crash of the road on an emergency trip!. Excessive wear maybe. Less grip yes. In a ditch with normal driving? | |||
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"Your contact patch in normal conditions with a tyre inflated to correct pressures is only the size of your palm in all four corners,, with it over inflated the patch is obviously smaller as less tyre is making contact with the road,, hence the increased likely hood of you involved in an accident Bow 17x235-55 is not a tyre size lol" . Why isn't it, did I put the numbers in the wrong place or something?. | |||
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"Your contact patch in normal conditions with a tyre inflated to correct pressures is only the size of your palm in all four corners,, with it over inflated the patch is obviously smaller as less tyre is making contact with the road,, hence the increased likely hood of you involved in an accident Bow 17x235-55 is not a tyre size lol" Tbf we can probably assume that they meant 235/55x17. | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened " Fck, - the cops are like nazi's, man!! | |||
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"Your contact patch in normal conditions with a tyre inflated to correct pressures is only the size of your palm in all four corners,, with it over inflated the patch is obviously smaller as less tyre is making contact with the road,, hence the increased likely hood of you involved in an accident Bow 17x235-55 is not a tyre size lol Tbf we can probably assume that they meant 235/55x17. " . That's OK I love being lectured by people who know less than me it's fun. The max pressure and max load numbers indicate the pressure at which the tire will carry the maximum amount of weight. It has nothing to do with the maximum pressure the tyre will take or burst at. | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened Fck, - the cops are like nazi's, man!!" I call Godwins law! | |||
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"Your contact patch in normal conditions with a tyre inflated to correct pressures is only the size of your palm in all four corners,, with it over inflated the patch is obviously smaller as less tyre is making contact with the road,, hence the increased likely hood of you involved in an accident Bow 17x235-55 is not a tyre size lol. Why isn't it, did I put the numbers in the wrong place or something?. " It's just not in the right order, it's quite clear what size tyre it is some people just like to point out mistakes Mine read 225/45/R17 91W | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened " It's frowned upon for good reason. It is often a factor in accidents. | |||
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"Your contact patch in normal conditions with a tyre inflated to correct pressures is only the size of your palm in all four corners,, with it over inflated the patch is obviously smaller as less tyre is making contact with the road,, hence the increased likely hood of you involved in an accident Bow 17x235-55 is not a tyre size lol Tbf we can probably assume that they meant 235/55x17. . That's OK I love being lectured by people who know less than me it's fun. The max pressure and max load numbers indicate the pressure at which the tire will carry the maximum amount of weight. It has nothing to do with the maximum pressure the tyre will take or burst at." Oh really? Just taking first tyre manufacturer I thought of, Goodyear would tend to disagree with you. Taken from their website "Tyre pressure information - This is the maximum inflation pressure for your tyre, which is important to know when checking tyre pressure. You should consult your vehicle's manual for more information." | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened It's frowned upon for good reason. It is often a factor in accidents." But what does your average cop know about tyre pressures? I always tweak mine either way depending on the conditions & the particular tyre that I buy. It's like a big nanny state! | |||
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"Shall we discuss correct windscreen wash fluid to water ratio now that we've covered tyre pressure And anyone saying use ready mixed...that's just cheating " Whatever you do don't start on that oily stuff with all those funny numbers | |||
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"Shall we discuss correct windscreen wash fluid to water ratio now that we've covered tyre pressure And anyone saying use ready mixed...that's just cheating " Ello ello ello, - what's all these here bubbles doing in this here container then? Your fckn nicked me old cocker!! | |||
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"Your contact patch in normal conditions with a tyre inflated to correct pressures is only the size of your palm in all four corners,, with it over inflated the patch is obviously smaller as less tyre is making contact with the road,, hence the increased likely hood of you involved in an accident Bow 17x235-55 is not a tyre size lol Tbf we can probably assume that they meant 235/55x17. . That's OK I love being lectured by people who know less than me it's fun. The max pressure and max load numbers indicate the pressure at which the tire will carry the maximum amount of weight. It has nothing to do with the maximum pressure the tyre will take or burst at. Oh really? Just taking first tyre manufacturer I thought of, Goodyear would tend to disagree with you. Taken from their website "Tyre pressure information - This is the maximum inflation pressure for your tyre, which is important to know when checking tyre pressure. You should consult your vehicle's manual for more information."" . Complete myth as is the correct generic tyre pressure for 4 million vehicles that look the same but may have different tyres different loads different driving styles different conditions.. It's why they call it a guide!. A new tyre will take at a minimum at least twice the " max pressure" without bursting. As an emergency guide for temporary use the Max pressure is a perfectly userable guide (I'd reason that it's better to have over pressure than lower pressure). However to be honest if you Google tyre pressure search instead of sex swinger site ,I will agree that your likely to get better advise through the first... I Googled it your correct theres at least ten on the first page. | |||
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"Shall we discuss correct windscreen wash fluid to water ratio now that we've covered tyre pressure And anyone saying use ready mixed...that's just cheating Whatever you do don't start on that oily stuff with all those funny numbers " I'm far too familiar with the oily stuff have to have it changed around every 7000 miles | |||
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"7000? "Insert misleadin quote from Internet" "Insert my own mental opinion" "Insert facts that only apply to my particular circumstance" " I-VTEC engine.....oil light comes on after 10,000ish give or take a thousand miles or so So change it beforehand | |||
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"Let's hope she left without taking any of the duff advice on here. The ignorance of many motorists regarding the single most important safety component of a vehicle, after the brakes, is staggering!!! The max pressure written on the tyre, is just that, the max. It's totally unsafe to drive with that inflation. As has been stated, the same tyre can be fitted to different vehicles and will require a different pressure to ensure the optimal amount of contact area with the road surface. If anything, it's safer to run slightly under inflated than over inflated, as this will give you more contact with the road, but will increase tyre wear. But a soft tyre will overheat at speed and cause side-wall damage and possible de-lamination. Some good suggestions above about where to look on the vehicle for the figure, and it's always in the owners manual, or of course, there's always a web search. Typically, the same vehicle will have different trim level specs and thus may be fitted with different wheels and tyres, thus you should ensure that you get the right figures for the wheels/tyres fitted to a particular make/model of car. Having said all that, for most regular cars 30 psi (or 2 bar) all round would be reasonable until you can find the correct values. Also, recommended tyre pressure figures are quoted for cold tyres, so no good using those figures if you've just blasted down the motorway for an hour or more. " Hey, who do you think you are sauntering in here speaking such sense. Don't you know it's all a myth. I would laugh if it wasn't for the fact I have to share roadspace with these misguided fools. | |||
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"7000? "Insert misleadin quote from Internet" "Insert my own mental opinion" "Insert facts that only apply to my particular circumstance" I-VTEC engine.....oil light comes on after 10,000ish give or take a thousand miles or so That wasnt a hit at you So change it beforehand " that wasnt a hit at you I was trying to stop an oil war | |||
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"7000? "Insert misleadin quote from Internet" "Insert my own mental opinion" "Insert facts that only apply to my particular circumstance" I-VTEC engine.....oil light comes on after 10,000ish give or take a thousand miles or so So change it beforehand " You do realise the reason behind changing oil is not just because the level has dropped low enough to illuminate the warning light? Please tell me you understand that? Particularly if you run a vtec engine | |||
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"7000? "Insert misleadin quote from Internet" "Insert my own mental opinion" "Insert facts that only apply to my particular circumstance" I-VTEC engine.....oil light comes on after 10,000ish give or take a thousand miles or so So change it beforehand You do realise the reason behind changing oil is not just because the level has dropped low enough to illuminate the warning light? Please tell me you understand that? Particularly if you run a vtec engine" Oil basically wears out not sure how else to put it | |||
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"Let's hope she left without taking any of the duff advice on here. The ignorance of many motorists regarding the single most important safety component of a vehicle, after the brakes, is staggering!!! The max pressure written on the tyre, is just that, the max. It's totally unsafe to drive with that inflation. As has been stated, the same tyre can be fitted to different vehicles and will require a different pressure to ensure the optimal amount of contact area with the road surface. If anything, it's safer to run slightly under inflated than over inflated, as this will give you more contact with the road, but will increase tyre wear. But a soft tyre will overheat at speed and cause side-wall damage and possible de-lamination. Some good suggestions above about where to look on the vehicle for the figure, and it's always in the owners manual, or of course, there's always a web search. Typically, the same vehicle will have different trim level specs and thus may be fitted with different wheels and tyres, thus you should ensure that you get the right figures for the wheels/tyres fitted to a particular make/model of car. Having said all that, for most regular cars 30 psi (or 2 bar) all round would be reasonable until you can find the correct values. Also, recommended tyre pressure figures are quoted for cold tyres, so no good using those figures if you've just blasted down the motorway for an hour or more. Hey, who do you think you are sauntering in here speaking such sense. Don't you know it's all a myth. I would laugh if it wasn't for the fact I have to share roadspace with these misguided fools." The laughable part is that so much of the above BS is said in a so matter of fact way!! | |||
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"7000? "Insert misleadin quote from Internet" "Insert my own mental opinion" "Insert facts that only apply to my particular circumstance" I-VTEC engine.....oil light comes on after 10,000ish give or take a thousand miles or so So change it beforehand You do realise the reason behind changing oil is not just because the level has dropped low enough to illuminate the warning light? Please tell me you understand that? Particularly if you run a vtec engine Oil basically wears out not sure how else to put it" I think you've said enough | |||
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"I find that corn oil works better at hotter temperatures! " Strictly olive olio for Italian cars | |||
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"7000? "Insert misleadin quote from Internet" "Insert my own mental opinion" "Insert facts that only apply to my particular circumstance" I-VTEC engine.....oil light comes on after 10,000ish give or take a thousand miles or so So change it beforehand You do realise the reason behind changing oil is not just because the level has dropped low enough to illuminate the warning light? Please tell me you understand that? Particularly if you run a vtec engine Oil basically wears out not sure how else to put it I think you've said enough" Forgive my clear lack of understanding of engine oil down to its chemical composition - it gets changed regularly, it costs me very little, in fact last time it was free so whats to worry about | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened It's frowned upon for good reason. It is often a factor in accidents. But what does your average cop know about tyre pressures? I always tweak mine either way depending on the conditions & the particular tyre that I buy. It's like a big nanny state! " At the roadside if a cop doesn't know he logs onto the Fab forum to ask about the tyre pressures | |||
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"I find that corn oil works better at hotter temperatures! Strictly olive olio for Italian cars " Can I have fries with it? Pleeease | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened It's frowned upon for good reason. It is often a factor in accidents. But what does your average cop know about tyre pressures? I always tweak mine either way depending on the conditions & the particular tyre that I buy. It's like a big nanny state! At the roadside if a cop doesn't know he logs onto the Fab forum to ask about the tyre pressures" Pmsl. That made me giggle | |||
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"That's OK I love being lectured by people who know less than me it's fun. To quote you sexybum " .Lol I know an electrician that's awful he knows fiddly diddly about the motive force of elections but knows which wire goes where really well. It doesn't make him an expert in electrics but a great fitter! But don't worry I've already forgot about it | |||
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"Hey sexybum! ! Tyre fitter for twenty years!! And counting!! In truck, agri, industrial and retail,, Think I know a little more than you about the subject than yourself!! Pipe down and stop arguing!! Is it really worth it??? Most people were bored with this an hour ago!! Esp the op who probably already has her tyres sorted!! Yawn - waits for equally boring reply lol " We're wasting our time trying to explain to that one. Tyre companies, AA, RAC, what do they know, they're all wrong according to sexybum | |||
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"Hey sexybum! ! Tyre fitter for twenty years!! And counting!! In truck, agri, industrial and retail,, Think I know a little more than you about the subject than yourself!! Pipe down and stop arguing!! Is it really worth it??? Most people were bored with this an hour ago!! Esp the op who probably already has her tyres sorted!! Yawn - waits for equally boring reply lol " Almost poetry to my ears - | |||
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"Plus running incorrect tyre pressures in any car is frowned upon by the police if they ever found out,, tested on an occasional roadside stop which has happened It's frowned upon for good reason. It is often a factor in accidents. But what does your average cop know about tyre pressures? I always tweak mine either way depending on the conditions & the particular tyre that I buy. It's like a big nanny state! At the roadside if a cop doesn't know he logs onto the Fab forum to ask about the tyre pressures" LMAO ......it seems as though there's quite a few already here - I'm just waiting for the tickets to be dished out!! | |||
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"I find that corn oil works better at hotter temperatures! Strictly olive olio for Italian cars " Oh shit, I never thought of that; & to think, all them years I've been thickening the corn oil with corn flour, - I haven't a Danny le ROUX! (see what I did there?) | |||
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"Hey sexybum! ! Tyre fitter for twenty years!! And counting!! In truck, agri, industrial and retail,, Think I know a little more than you about the subject than yourself!! Pipe down and stop arguing!! Is it really worth it??? Most people were bored with this an hour ago!! Esp the op who probably already has her tyres sorted!! Yawn - waits for equally boring reply lol We're wasting our time trying to explain to that one. Tyre companies, AA, RAC, what do they know, they're all wrong according to sexybum " .You believe what you want I'm just telling you if you read any popular mechanics experiments or actual tyre research you would know that Max pressure means The max press or max load numbers indicate the pressure at which the tire will carry the maximum amount of weight.... It's got nothing to do with blow out pressure. The area of the contact patch does not affect the actual grip of the tyre. The things that do affect grip are the coefficient of friction of the rubber compound and the load on the tyre. As far as friction is concerned, the formula is relatively simple - F=uN, where F is the frictional force, N is the Normal force for the surfaces being pressed together and u is the coefficient of friction. In the case of a tyre. Also wider tyres don't mean more grip it's a scientific fact. Just because things are commonly held beliefs doesn't mean there right. If you want better miles to the gallon try Max pressure less 10% but you'll decrease grip, less pressure you'll increase grip but get less miles to the gallon, you'll wear the tyre out unevenly regardless but what you won't do is blow the tyre out, or crash of the road (all things being equal and you drive normally don't overload and don't smash up kerbs). | |||
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"Normally on a plate on one of the door pillars!" | |||
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"60 DPI front tyres 70 DPI rear tyres is that meant to be PSI? And I hope she has set off, before reading it, if not. AS STICKING THAT MUCH AIR IN A TYRE WOULD PROBABLY CAUSE A MAJOR ACCIDENT. Proably went out and looked at his lorry tyre pressure, lol" If someone blows their tyres up from recommendations on a swinging site...... | |||
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"Hey sexybum! ! Tyre fitter for twenty years!! And counting!! In truck, agri, industrial and retail,, Think I know a little more than you about the subject than yourself!! Pipe down and stop arguing!! Is it really worth it??? Most people were bored with this an hour ago!! Esp the op who probably already has her tyres sorted!! Yawn - waits for equally boring reply lol We're wasting our time trying to explain to that one. Tyre companies, AA, RAC, what do they know, they're all wrong according to sexybum .You believe what you want I'm just telling you if you read any popular mechanics experiments or actual tyre research you would know that Max pressure means The max press or max load numbers indicate the pressure at which the tire will carry the maximum amount of weight.... It's got nothing to do with blow out pressure. The area of the contact patch does not affect the actual grip of the tyre. The things that do affect grip are the coefficient of friction of the rubber compound and the load on the tyre. As far as friction is concerned, the formula is relatively simple - F=uN, where F is the frictional force, N is the Normal force for the surfaces being pressed together and u is the coefficient of friction. In the case of a tyre. Also wider tyres don't mean more grip it's a scientific fact. Just because things are commonly held beliefs doesn't mean there right. If you want better miles to the gallon try Max pressure less 10% but you'll decrease grip, less pressure you'll increase grip but get less miles to the gallon, you'll wear the tyre out unevenly regardless but what you won't do is blow the tyre out, or crash of the road (all things being equal and you drive normally don't overload and don't smash up kerbs)." There is just so much wrong with this post but I can no longer be bothered to waste my time trying to educate you. I'll leave to your bizarre obsession with exploding tyres. Happy motoring | |||
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"Surely you have just contradicting yourself. You say that contact patch has nothing to do with grip. Then you say increase tyre pressure to increase mpg but this reduces grip... The reason you are getting less grip and more mpg is because you have decreased the contact patch..." . The whole argument started over maximum tyre pressure!! I'm giving up now! But no you've reduced rolling resistance not grip! | |||
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"Hey sexybum! ! Tyre fitter for twenty years!! And counting!! In truck, agri, industrial and retail,, Think I know a little more than you about the subject than yourself!! Pipe down and stop arguing!! Is it really worth it??? Most people were bored with this an hour ago!! Esp the op who probably already has her tyres sorted!! Yawn - waits for equally boring reply lol We're wasting our time trying to explain to that one. Tyre companies, AA, RAC, what do they know, they're all wrong according to sexybum .You believe what you want I'm just telling you if you read any popular mechanics experiments or actual tyre research you would know that Max pressure means The max press or max load numbers indicate the pressure at which the tire will carry the maximum amount of weight.... It's got nothing to do with blow out pressure. The area of the contact patch does not affect the actual grip of the tyre. The things that do affect grip are the coefficient of friction of the rubber compound and the load on the tyre. As far as friction is concerned, the formula is relatively simple - F=uN, where F is the frictional force, N is the Normal force for the surfaces being pressed together and u is the coefficient of friction. In the case of a tyre. Also wider tyres don't mean more grip it's a scientific fact. Just because things are commonly held beliefs doesn't mean there right. If you want better miles to the gallon try Max pressure less 10% but you'll decrease grip, less pressure you'll increase grip but get less miles to the gallon, you'll wear the tyre out unevenly regardless but what you won't do is blow the tyre out, or crash of the road (all things being equal and you drive normally don't overload and don't smash up kerbs)." You've over simplified friction physics there. You need to account for kinetic and static friction and dynamic changes such as temperature affecting the compound. Plus the efficiency of removing surface water, which again changes things. It isn't as simple as GCSE science | |||
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"Bang 32 in the front an 29 in the back an drive it like you stole it " . About right . 30 all round would be safe enough for one day . | |||
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"Hey sexybum! ! Tyre fitter for twenty years!! And counting!! In truck, agri, industrial and retail,, Think I know a little more than you about the subject than yourself!! Pipe down and stop arguing!! Is it really worth it??? Most people were bored with this an hour ago!! Esp the op who probably already has her tyres sorted!! Yawn - waits for equally boring reply lol We're wasting our time trying to explain to that one. Tyre companies, AA, RAC, what do they know, they're all wrong according to sexybum .You believe what you want I'm just telling you if you read any popular mechanics experiments or actual tyre research you would know that Max pressure means The max press or max load numbers indicate the pressure at which the tire will carry the maximum amount of weight.... It's got nothing to do with blow out pressure. The area of the contact patch does not affect the actual grip of the tyre. The things that do affect grip are the coefficient of friction of the rubber compound and the load on the tyre. As far as friction is concerned, the formula is relatively simple - F=uN, where F is the frictional force, N is the Normal force for the surfaces being pressed together and u is the coefficient of friction. In the case of a tyre. Also wider tyres don't mean more grip it's a scientific fact. Just because things are commonly held beliefs doesn't mean there right. If you want better miles to the gallon try Max pressure less 10% but you'll decrease grip, less pressure you'll increase grip but get less miles to the gallon, you'll wear the tyre out unevenly regardless but what you won't do is blow the tyre out, or crash of the road (all things being equal and you drive normally don't overload and don't smash up kerbs). You've over simplified friction physics there. You need to account for kinetic and static friction and dynamic changes such as temperature affecting the compound. Plus the efficiency of removing surface water, which again changes things. It isn't as simple as GCSE science " . Well if I'd gone into the dynamics of rubber compound, road surface and temperature we could have been here all day.. It was a simplified way to explain grip is grip and not just contact area, there's a thousand variables as I stated way back up the list | |||
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"And you're wrong about surface area - if everything was the same (compound, load, temp etc etc) then the more surface area in contact, the greater the coefficient of friction, thus more grip. Otherwise, why have wide tyres on racing cars - just because they look cool? Why have multiple pot calipers on braking systems?" .Your right if everything was the same they would have more grip but it isn't because the contact is bigger, it's the same size. What changes is the compound they can make wider tyres from.. It's softer and gets better grip from being grippy not from being a bigger contact area. The contact area of a wider tyre is exactly the same as the contact area on a narrower tyre. Just to be clear I'm not endorsing driving on over inflated tyres or under inflated tyres for various reasons. But as I stated from the beginning if you put max pressure in and drive to a garage sensibly you'll be just fine | |||
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"And you're wrong about surface area - if everything was the same (compound, load, temp etc etc) then the more surface area in contact, the greater the coefficient of friction, thus more grip. Otherwise, why have wide tyres on racing cars - just because they look cool? Why have multiple pot calipers on braking systems?.Your right if everything was the same they would have more grip but it isn't because the contact is bigger, it's the same size. What changes is the compound they can make wider tyres from.. It's softer and gets better grip from being grippy not from being a bigger contact area. The contact area of a wider tyre is exactly the same as the contact area on a narrower tyre. Just to be clear I'm not endorsing driving on over inflated tyres or under inflated tyres for various reasons. But as I stated from the beginning if you put max pressure in and drive to a garage sensibly you'll be just fine " makes no sense - if the tyres are wider and all other variables are the same, the contact area will be greater. | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" in my toyota prius in it on the drivers side front door when you open it..... bright yellow sticker at the bottom... I would assume all toyotas would have it in the same place | |||
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"I hate to point out the obvious... But it's usually wrote on tyre " That's the MAX pressure the tyre can take....it will vary a lot depending on the mass of the car etc. that's why you inflate to higher on a fully loaded car....or you should! | |||
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"And you're wrong about surface area - if everything was the same (compound, load, temp etc etc) then the more surface area in contact, the greater the coefficient of friction, thus more grip. Otherwise, why have wide tyres on racing cars - just because they look cool? Why have multiple pot calipers on braking systems?.Your right if everything was the same they would have more grip but it isn't because the contact is bigger, it's the same size. What changes is the compound they can make wider tyres from.. It's softer and gets better grip from being grippy not from being a bigger contact area. The contact area of a wider tyre is exactly the same as the contact area on a narrower tyre. Just to be clear I'm not endorsing driving on over inflated tyres or under inflated tyres for various reasons. But as I stated from the beginning if you put max pressure in and drive to a garage sensibly you'll be just fine makes no sense - if the tyres are wider and all other variables are the same, the contact area will be greater." . Yes and no it changes shape becomes more rectangler with your wider tyres but presuming you have tread legal tyres the tread actually gets thicker so you have less front to back measurement with more side to side but with a wider tread so you have the same contact area. The reason they grip better is displacement of heat through less sidewall so they can make them from softer compounds to increase grip! Or something along those lines it's been awhile since I read the article | |||
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" Why have multiple pot calipers on braking systems?" Oh gawd, don't start on brakes next | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales in my toyota prius in it on the drivers side front door when you open it..... bright yellow sticker at the bottom... I would assume all toyotas would have it in the same place" I mean the front door well... not on the front door... that would be mad!!! see..... these are things they should have in a real life driving test.... things that are bloody useful!!! | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales" Look at tyre size and then at garage it'll tell you psi u need xx if not then ask in garage they normally helpful xxx | |||
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"I've learnt something new today, - wide tyres have the same contact area as narrow tyres............so, when F1 cars have wider tyres for extra grip & drive, they're only using the same contact area!!! Time to bid everyone a good afternoon, me thinks!! " . Sorry I never realised we were discussing your trip to work on slicks in a formula one car . If so you might want to check your mileage as they don't do many miles to a set... Because there soft, really soft so that they grip. | |||
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"And you're wrong about surface area - if everything was the same (compound, load, temp etc etc) then the more surface area in contact, the greater the coefficient of friction, thus more grip. Otherwise, why have wide tyres on racing cars - just because they look cool? Why have multiple pot calipers on braking systems?.Your right if everything was the same they would have more grip but it isn't because the contact is bigger, it's the same size. What changes is the compound they can make wider tyres from.. It's softer and gets better grip from being grippy not from being a bigger contact area. The contact area of a wider tyre is exactly the same as the contact area on a narrower tyre. Just to be clear I'm not endorsing driving on over inflated tyres or under inflated tyres for various reasons. But as I stated from the beginning if you put max pressure in and drive to a garage sensibly you'll be just fine " Yep, the contact area is the same, - I'm 100% in agreement with you!!! | |||
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"I cant find my car manual book and not much luck on google either i need to put air in my tyres but not sure how much. I have a toyota yaris. Can anyone advise please Im going out in an hour to north wales in my toyota prius in it on the drivers side front door when you open it..... bright yellow sticker at the bottom... I would assume all toyotas would have it in the same place I mean the front door well... not on the front door... that would be mad!!! see..... these are things they should have in a real life driving test.... things that are bloody useful!!! " They ARE NOW included in new driving tests. | |||
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"And you're wrong about surface area - if everything was the same (compound, load, temp etc etc) then the more surface area in contact, the greater the coefficient of friction, thus more grip. Otherwise, why have wide tyres on racing cars - just because they look cool? Why have multiple pot calipers on braking systems?.Your right if everything was the same they would have more grip but it isn't because the contact is bigger, it's the same size. What changes is the compound they can make wider tyres from.. It's softer and gets better grip from being grippy not from being a bigger contact area. The contact area of a wider tyre is exactly the same as the contact area on a narrower tyre. Just to be clear I'm not endorsing driving on over inflated tyres or under inflated tyres for various reasons. But as I stated from the beginning if you put max pressure in and drive to a garage sensibly you'll be just fine Yep, the contact area is the same, - I'm 100% in agreement with you!!! " Area in contact is changed by pressure in tyres and mass of car. Simple equation (GCSE science) pressure (in tyres) = force (weight of car) / Area (of tyres in contact with ground) So only an increase in weight or a decrease in pressure will actually change the contact area. | |||
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"1+1=3, & I agree with that, too!! " . Right you know when you buy tyres they come with good millage or good grip or good in the rain etc etc.. So there grippy tyres are soft but don't last and because there soft they have to dissipate heat which means you need a lot profile The rain tyres have big wide grooves, less contact area good for channelling water away but less grip, Because the water takes away friction it really doesn't matter if you make them soft or hard (oooer) Good millage is hard rubber , doesn't grip much but doesn't wear easy. Hard rubber can be used with high walls because the heat doesn't affect it because it's hard and that makes them good load bearers( mmmm) I'm just adding these remarks to hold your attention span because I see your struggling. (Oh yeah baby) By your logic they could just do all by making them wide adding grooves and making them soft. Do you know why they don't because they can't.(mmmmmm,mmm) | |||
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"1+1=3, & I agree with that, too!! . Right you know when you buy tyres they come with good millage or good grip or good in the rain etc etc.. So there grippy tyres are soft but don't last and because there soft they have to dissipate heat which means you need a lot profile The rain tyres have big wide grooves, less contact area good for channelling water away but less grip, Because the water takes away friction it really doesn't matter if you make them soft or hard (oooer) Good millage is hard rubber , doesn't grip much but doesn't wear easy. Hard rubber can be used with high walls because the heat doesn't affect it because it's hard and that makes them good load bearers( mmmm) I'm just adding these remarks to hold your attention span because I see your struggling. (Oh yeah baby) By your logic they could just do all by making them wide adding grooves and making them soft. Do you know why they don't because they can't.(mmmmmm,mmm) " You must plainly be trolling because otherwise you are just talking the most absolute bollocks. Please tell me it is just a wind-up, you're not really serious are you? | |||
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"1+1=3, & I agree with that, too!! . Right you know when you buy tyres they come with good millage or good grip or good in the rain etc etc.. So there grippy tyres are soft but don't last and because there soft they have to dissipate heat which means you need a lot profile The rain tyres have big wide grooves, less contact area good for channelling water away but less grip, Because the water takes away friction it really doesn't matter if you make them soft or hard (oooer) Good millage is hard rubber , doesn't grip much but doesn't wear easy. Hard rubber can be used with high walls because the heat doesn't affect it because it's hard and that makes them good load bearers( mmmm) I'm just adding these remarks to hold your attention span because I see your struggling. (Oh yeah baby) By your logic they could just do all by making them wide adding grooves and making them soft. Do you know why they don't because they can't.(mmmmmm,mmm) You must plainly be trolling because otherwise you are just talking the most absolute bollocks. Please tell me it is just a wind-up, you're not really serious are you?" . I don't know am i ?. Let's hear your theory. | |||
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"I hate to point out the obvious... But it's usually wrote on tyre " It is NEVER on the tyre, that is the maximum for the tyre and should never be run at that on any car | |||
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"I hate to point out the obvious... But it's usually wrote on tyre It is NEVER on the tyre, that is the maximum for the tyre and should never be run at that on any car" Shhh, you'll start sexybum off again on his/her exploding tyre theory. Do yourself a favour, do not read their posts or you run the risk of hurting your head as you bang it off the wall in disbelief | |||
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"I hate to point out the obvious... But it's usually wrote on tyre It is NEVER on the tyre, that is the maximum for the tyre and should never be run at that on any car" why? | |||
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"I hate to point out the obvious... But it's usually wrote on tyre It is NEVER on the tyre, that is the maximum for the tyre and should never be run at that on any car Shhh, you'll start sexybum off again on his/her exploding tyre theory. Do yourself a favour, do not read their posts or you run the risk of hurting your head as you bang it off the wall in disbelief" .Why?..Why am I trolling but you just slag me off without any proof and that's not trolling? | |||
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"I hate to point out the obvious... But it's usually wrote on tyre It is NEVER on the tyre, that is the maximum for the tyre and should never be run at that on any car Shhh, you'll start sexybum off again on his/her exploding tyre theory. Do yourself a favour, do not read their posts or you run the risk of hurting your head as you bang it off the wall in disbelief.Why?..Why am I trolling but you just slag me off without any proof and that's not trolling?" I've quoted directly from the website of Goodyear one of the largest tyre companies. Other tyre companies, AA and RAC state the same but you say they are all wrong. I am not the only one telling you that you are wrong but you dismiss us all, even a tyre fitter. You are not talking sense and you know it. That is why I accuse you of trolling. | |||
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