Hi Diana. Thanks for your question. You'll find the manufacturer’s optimum or recommended tyre pressure for your car on a sticker in the door jamb, or your car's manual. Some models even place the stickers on the trunk lid, in the console, or on the fuel door.

The recommended pressure is usually between 30 and 35 PSI. This number indicates the minimum amount of air pressure needed to support your vehicle’s maximum load-carrying capacity. Any less, and you'll experience poor fuel economy and handling, as well as premature wear from too much flexing and tyre overloading.

When your tires are inflated to the recommended PSI, the tyres will be at their optimum performance.