Do cars get worse mileage when it’s cold?

Yes, cars generally get worse mileage in cold weather. Here’s why:

• Engine Efficiency: Engines take longer to reach optimal operating temperature, and until they warm up, they’re less fuel-efficient.

• Increased Idling: People often let cars idle longer to warm them up, which burns more fuel without moving.

• Thicker Fluids: Cold temperatures make engine oil and other fluids thicker, creating more resistance and requiring more energy.