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Originally Posted by GreyGoose006
i'm sorry, but if the sidewall of my tire says 44psi. (it does), i'm gonna inflate it to 44psi. if it says 15, i'll happily put 15psi. in it.
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think about it, the tyres on YOUR car are not made solely for YOUR car (that model) they are put on OTHER cars, which will have DIFFERENT weight.
now, contact patch is in proportion to vehicle weight and tyre inflation pressure. if your car weighs 3,000lb and you run it at 44psi then your contact patch will be different to a 3,500lb car running 44psi.
you see, it doesn't matter about the tyre's max in this case, the manufacturer uses these tyres and test them on the vehicle, they then look at ride comfort, contact patch etc and THEY determine what pressure should be run, to give a good balance in those areas.
hence the reasoning that you should not inflate a tyre to the max pressure (as listed on the sidewall, since they're used on different cars, with different inflation pressures the tyre manufacturer can't say what pressure YOU should run, they can only tell you the max pressure the tyre can hold for its laod rating) and that you should follow what the car manufacturer reccomends.
but if you want to over-inflate them, then get killed because your contact patch isn't sufficient then by all means do so. but don't tell people you should run them at the max when it's not true for everday driving.