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I'm going to inflate my tires to 45 psi on Sunday to see how much it helps with MPG, grip, cornering, traction etc. I'm going to be driving 330 miles from Lodi, CA to Arcata, CA via HWY 36 which is very windy and twisty so it'll definitely be interesting. I just drove down that way with my tires at 31 psi, should have inflated them to 32 before I left (door placard number) but I felt it would be fine.
I'm very new to all things cars in general but have been trying to learn as much as I can. The way I understand tire inflation is that you want to have as square a contact patch as possible within recommended psi, ie between door placard psi and max sidewall psi. I have aftermarket rims and tires (225/45/17) so my max sidewall psi is 51 as opposed to the stock tires (195/65/15) 44 and my door placard psi is 32.
Now I'm curious about something, if I over-inflate my tires to 50 psi, will they still wear evenly or will they unevenly. The car only weighs about 2600lbs so I don't want to over-inflate it too much to cause too much uneven tread wear.
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