Well if i dont ask the 'obvious or dumb questions', no one does. Why do all tires come with a 'Max. pressure' on the sidewall, and it is always like 42-44 PSI, and yet every car will say to keep the pressure at a much lower number, no matter the brand/make of tire? I think my 2006 Aveo is 30 PSI all around, yet the new tires I am getting tomorrow, the 5th set!!!, at 35K miles, says 44 PSI Max. pressure. I know if you ride them with higher pressure you get slightly better mileage, but the tires wear out faster. The lower pressure gives you a softer/comfortable ride, but uses more fuel. The way my Aveo eats tires, it doesn't seem to matter what pressure I have in them, but I keep them at 30-32.

So....why do the makers of tires say a HIGH pressure, and yet the car maker tells you a much lower pressure? I have always wondered this, and decided to ask...might as well. I cant be the only one that wonders this. I prefer the hard ride with higher pressure, but the road noise get to be to much, and the tires wear out even faster!!!

The softer pressure does give a nice soft ride, but to me it seems the sides of the tires wear out FAST at the low pressure. Am I wrong? Even with rotating/balancing, they wear out on the edges when the pressure is the low 30 Chevy says to keep them at. Any one got some answers to this stupid question?