Colder temperatures: When the outside temperature drops, your engine has to work harder to maintain its operating temperature. This can cause it to use more fuel.
Idling: You may be more likely to let your car idle during the winter months, especially if you have a long commute or other reasons to spend time in your car. Idling uses a lot of fuel, so try to avoid it if possible.
Cold tires: Cold tires have less rolling resistance than warm tires, which can cause your car to use more fuel.
Snow and ice: Driving through snow and ice can increase your car's rolling resistance, which also causes it to use more fuel.
Increased traffic congestion: Traffic congestion is more common during the winter months, and it can also lead to worse gas mileage.
Winter fuel: Winter fuel is blended to be less flammable, which can cause your engine to run less efficiently and use more gas.
If you are experiencing significant drop in gas mileage during cold weather, you should have your car inspected by a qualified mechanic to ensure there are no other underlying problems.
