Wednesday, July 02, 2008

Tire Pressure and Gas Mileage

Did you know that keeping your tires at the recommended pressure could improve your fuel economy?

Let’s say the correct tire pressure on your tires is suppose to be 35 psi, according to the tire sticker in the inside of the door. If 35 psi is in your tire that means that six square inches of you tire is touching the ground, the way the tire was designed. Now let say some air was let out of the tire and there’s now 30 psi in the tire, eight square inches are now touching the road. Since your tire is like a balloon, the more air you have on the inside, the rounder and more firm your tire becomes. Having eight square inches touch the ground would consume more gas than having six square inches on the ground because it’s harder to turn a tire that is flatter, which makes your engine work harder.

Filling you tires with the correct tire pressure makes your engine run easier and can improve you fuel by three to four miles per gallon. That’s at least 36 more miles to the average tank, and 1,872 more miles in one year. You can check to see what is the correct tire pressure for your tire by checking the tire sticker on the inside of the driver’s door, owner’s manual or on the tire itself.

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