Warming up your car in cold weather can cause engine damage

Warming up your gas car in winter can damage your engine’s pistons and cylinders. It can also decrease your vehicle’s fuel efficiency and hurt the environment.

The biggest winter energy myth: That you need to idle your car before driving - The Washington Post

Experts weigh in: Do you need to warm up your car in cold weather?

Should You Start Your Car in Extreme Cold? Freeway Insurance

How Long to Warm Up Your Car Engine Damage Warming Up Car

Car won't start in the cold? Causes and solutions, RAC Drive

How Long Do You Need to Warm Up Your Car? - CARFAX

Are there any benefits to warming up my car on a cold day?

Winter storm weather: Why it may be a bad idea to warm up your car

How Severe Cold Affects Your Car (and What to Do about It)

Do Cold Starts Increase Engine Wear? –