Quote:
Originally Posted by 8695Beaters
So Eyes, you think you know more than the OEMs about what pressure to put in the tires they designed for the car? It's not like they designed and built the entire thing (I don't mean to rip on you, but it's true).
If the tires are stock equivalent, then use the door jam pressure. That's what Honda meant it to have in it, so it would be stupid not to follow it.
Remember tire pressures change a good deal during driving. 40 psi cold will change to 47 psi or so once the tire heats up. Now you have shortened the life of the tire.
My dad puts 100 miles a day on his car (nearly all highway). He never uses any pressure but what Toyota reccomends for his Matrix. And his tires last just as long as they are meant to (60,000 for his last set).
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First of all the car is an 02 so it is unlikely they are the same tires as when it rolled out of the factory.Secondly this is a recommended tire pressure on the plate...not mandatory. Third is that the pressure max listed on a tire is what is known as "cold pressure" The tire is designed to run at max psi under max weight when checked cold...however it is extremely rare to max out the weight rating on the tire ever! And to answer you question, I am a retired mechanic...so I know about tires and recommended practices and uses...plus since then I have become a professional driver and recently was awarded my 1,000,000 mile accident free incident free award...and part of any good pre-trip inspection is a tire check!Under 80,000 to 100,000 pounds that I normally carry I keep my steers at max 110psi and all others at 100psi max...and have never had a blow out so a 3000 pound car will not have a problem running 40 psi in a 44psi rated tire!