Open your left front door and look at the edge of the door, you'll find a label that tells you what the proper tire pressure is. Generally, it would be 30 psi for most cars.
-guest:guest;
2001-8-13(#165318@0)
You can check the tire using a cent (US). If your tires look old, just buy new tires. Quite cheap.
-larryxliu(bubble);
2001-8-13(#165434@0)