Why fuel economy is lower in the winter

There are many factors that come into play when dealing with fuel economy. However, according to The US Department of Energy, fuel economy is even lower in the winter. Here’s why:

• Cold temps make cold engine oil and other fluids. This causes an increase in engine & transmission friction.

• Your vehicle will not warm up as fast, taking it longer to reach its most fuel-efficient temperature.

• Extra power is lost when using heated seats, window defrosters, and heater fans.

• Idling to warm up your vehicle gets 0 miles per gallon.

• The dense, cold air increases the aerodynamic drag on your vehicle.

• Cold temps cause a decrease in tire pressure.

• Winter grades varies from summer blends, which may have less energy per gallon.

• Battery performance decreases, which makes it harder for the alternator to keep the battery charged.

Learn more about fuel economy online at fueleconomy.gov.