Q:

# How do you calculate fuel mileage?

A:

Calculate fuel mileage by dividing the amount of miles traveled by the gallons used. Make sure you reset your odometer after refilling your tank. On your next refueling, note the gallons used.

Know More

The most accurate way to determine gas mileage is to run your vehicle until it is completely out of gas. Doing this requires using a 1-gallon gas tank to refuel your vehicle just enough to get to a gas station.

2. Run your vehicle out of fuel

By completely running your vehicle out of fuel and using a 1-gallon can to get you to a gas station, you have a very accurate way to measure your mileage. If your tank holds 16.9 gallons and you fill it with 16.7 gallons, you know that you have 16.9 gallons in your tank because the missing .2 gallons is from the one-gallon gas can. Make sure to reset the travel odometer after filling the tank.

3. Measure and calculate

Once your vehicle is completely out of gas again, simply look at your miles traveled, and divided it by your tank size (miles travel ÷ tank size = mileage).

## Related Questions

• A:

To increase your gas mileage, moderate your driving habits while behind the wheel, and manage your trips around town so that you get the most efficiency out of each time you leave the house. Maintaining your car and minimizing excess weight also help increase mileage.

• A:

In the United States, the average driver puts in between 13,476 and 15,000 miles per year on a vehicle. These statistics may vary from year to year, however.

• A:

Many possible factors can lead to poor gas mileage, including driving faster and more aggressively, which both cause the engine to require more fuel to perform less work. In addition to driving habits, using certairn vehicle accessories and features, such as air conditioning, worsens gas mileage by putting additional strain on the engine.

• A:

Poor gas mileage may be caused by thoughtless driving, improperly inflated tires or worn spark plugs. Regular maintenance, including rotating tires, can improve gas mileage significantly.