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Old 04-27-2008, 05:42 PM   #9 (permalink)
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Join Date: Apr 2008
Location: South Jersey
Posts: 20

Unwaking Sleeper - '00 Toyota Corolla LE
90 day: 34.11 mpg (US)
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GuitarTerry, thank you for keeping the forums straight. You are right, I do not fully understand all of the workings of the tire and wheel. I understand that the tire pressure affects the form of the tire, and is what holds up the vehicle. But shouldn't a Corvette tire, with a 245MM width have a larger contact area than my 185MM wide tire corolla within reasonable pressure amounts? (& maybe i am still wrong, & still am not getting something!) could it just be that the patch is wider and not as long?
My experience with tire width and pressure is that at 175mm i could get 39mpg, and now with the 185mm s i get 35 mpg. There must be some other factor. Pumping up the PSI on the 185s from 33 to 35 has netted me about 1-2 mpg on average. the 175s were kept between 33 and 34.

Maybe you might want to check this out:
I love that site, but I haven't read that article lately. Don't have time to now either. Cya

Last edited by toomuch; 04-27-2008 at 05:46 PM.. Reason: because
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