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How Tire Pressure Affects Gas Mileage

Last updated 5 years ago

The condition of your tires is one of the most important things to consider as a driver. Your tread level can greatly reduce traction and make dangerous accidents more likely. But what tire care really boils down to is air pressure. The pressure in your tires is meant to be kept at a precise level, and deviation from this level can lead to increased tire wear, and most noticeably, lower gas mileage. Here is how tire pressure can affect your fuel economy:

Tires hold air at a specified pressure, but will slowly leak some of that air, causing a reduction in tire pressure. This loss of pressure means that your tires are a bit softer, making them sag and become wider at the bottom.

The soft, wide patch of tire that is now the point of contact between your car and the road causes a lot more friction than a properly inflated tire would. While friction is good for traction, which is one reason to avoid putting too much air in your tires, too much friction will make it difficult for your tires to roll.

Your car has to work hard against many forces when you are driving, such as wind resistance at high speeds, gravity when going uphill, and friction between the tires and the road. If you increase the friction that your car must fight, then you make it work harder and burn much more fuel to cover the same distance.

Tire pressure should be checked monthly and before long trips to ensure that you are not putting yourself at a disadvantage for safety or for fuel efficiency. An experienced auto mechanic from A-1 Auto Tech, Inc. can check and maintain your tire pressure for you, keeping you on the road and your money in your wallet. For more information on the many maintenance and repair services offered by the experts at A-1 Auto Tech, Inc., call (650) 265-4085 or contact us online.

 

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