Does Tire Pressure Improve Fuel Economy?

Save money at the pump by inflating your tires correctly.

Inflating your tires to the proper pressure can improve your gas mileage by up to 3.3 percent, according to FuelEconomy.gov. That translates to savings of up to nine cents per gallon.

Features

Properly inflated tires last longer, stop more quickly, run cooler and handle better, which improves your fuel economy. Under-inflated tires reduce fuel economy by 0.3 percent for every 1 pounds per square inch drop in tire pressure, according to FuelEconomy.gov.

Solution

Find the proper tire pressure for your tires in your owner's manual or on a sticker in the driver's side door jamb. Do not inflate your tires to the maximum pressure printed on the tire. Check your tire pressure every month.

Misconceptions

Over-inflating your tires will not increase your fuel economy. Over-inflated tires also make it more difficult to control the vehicle and make the ride less smooth.

Considerations

You can also increase your fuel economy by using the grade of motor oil recommended in your owner's manual, driving gently, following speed limits and using cruise control.

References

• FuelEconomy.gov: Keeping Your Car In Shape
• FuelEconomy.gov: Driving More Efficiently
• SaferCar.gov: General Information FAQ