Keep Your Eye On The PSI To Save You Gas

Can buying the right tires save you in extra fuel costs? Can keeping your eye on the PSI (pounds per square inch) save you gas? The simple answer is, “Yes”. Rolling resistance and friction play a huge part in the amount of fuel you save. Simply speaking, the more rolling resistance and friction, the less miles per gallon you are going to get out of your car. If your tires are inflated to the right pressure, then a tire with low rolling resistance can give you as much as an additional 3 miles per gallon in extreme cases.

Under the weight of your car the tire is distorted with every turn of the wheel. Now, when your tires are under-inflated, the rubber distorts under the heavy weight of the car and bells out and more surface area of the tire touches the road. It stands to reason that your car will have to generate more energy to create continuous forward movement. The more rubber on the road, the more fuel your engine needs to move the car and the less you save in gas.

This video explains further the physics behind rolling resistance and how it affects your gas mileage.

Even being under inflated by a few pounds, your tires are not going to perform the way they should. If you don’t think that the inflation of your tires plays such a definitive role in keeping money in your pocket, think again. If you need more proof, I’d be glad to discuss the benefits of keeping a watchful eye on your PSI here at your Cadillac, Buick,  GMC, Chevrolet dealer, the Southtowne General Motors Superstore.

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