It takes longer, wastes fuel, and actually increases the wear and tear on your engine.
Why is it a bad idea to warm up your car?
Actually, warming your car up during the winter can do more damage than it does good. So, why is it a bad idea to warm your car up? Your car will not only use more fuel up when you idle it, but it also runs the risk of the fuel getting into the cylinder walls.
How long should I let my car idle to warm up?
When temperatures drop during winter it’s a good idea to let the car run for about a minute. Some drivers prefer to let the engine idle for 20 minutes or longer to get everything—including the cabin—really warm, but the fastest way to warm up an engine is by driving.
Is it bad to leave your car running while it's cold?
The engine will warm during gentle driving without putting too much load on it before it reaches operating temperature. As idling is unnecessary for most cars, doing so for too long on a cold day could cause problems for your engine.
Do you need to warm up a carbureted car before driving?
Since carbureted cars don’t have the advanced sensors that modern vehicles do, you should always warm up the engine before you drive. What Will Happen if You Don’t Warm Up Your Carbureted Car Before Driving? Gasoline is a solvent, so when extra fuel gets onto the cylinder walls it washes away the oil from the cylinder and the pistons.
Below you will find two interesting articles on a similar topic 👇Why You Should Never warm up your car?
What happens if you don't warm up your car in the winter?