u/Grimjack2

Maybe everybody else has been doing it right, but for the last year, I've had my tire pressure down almost 10% below the recommended amount. When I got my car from the dealership the tire pressure was about 29 all the way around (30 on warm days). I only recently checked the sticker on the inside of the door that said it should be at 33 psi for all four tires.

Did this make a difference in mileage, tire wear, or handling? I'll post a follow up to let everybody know after I finally take a longer trip, or put on another few hundred miles.