Confused about the pressure number on your tire? Learn why the tire’s pressure rating isn’t what you should use and what to ...

Your car has a recommended tire pressure that will give the best gas mileage, handling and tire life for that car — and it’s written right on the vehicle’s door.

It’s always better to go too high than too low with tire pressure, Gary (to a point). As you say, tire pressure changes along with the outside temperature. For every change of 10 degrees in the ...