What should the air pressure on a 1998 Chevy cavalier be?

The recommended tire pressure for a 1998 Chevy Cavalier isn't a single number; it depends on the specific tire size and whether the tires are on the front or rear axles (though often it's the same for both).

You must check the sticker located on the driver's side doorjamb. This sticker will provide the manufacturer's recommended tire pressure for your particular Cavalier. It's the most accurate source of information.

The information on the sticker will likely specify pressures in PSI (pounds per square inch) for both the front and rear tires, and might also indicate different pressures for normal driving and when the vehicle is fully loaded.

Do not rely on a generic answer found online. Using incorrect tire pressure can negatively impact your fuel economy, handling, tire wear, and even your safety.