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For as long as I can remember, people have “warmed up” their car in the winter months. That was much more the case when I grew up up north, but people still do it down here. The concept seems to be that the engine needs to be warmed up to run properly and avoid damage. This is not the case with modern engines.

Before the 1980s, a carburetor controlled the mixing of fuel and air. One shortcoming of the carburetor was its inability to control the fuel in the air-fuel mixture precisely. Given that gasoline has a hard time evaporating in cold weather, the carburetor was susceptible to releasing a lot more fuel than necessary. The fuel-rich mixture increased the potential for engine damage once ignited. To negate the risk of engine failure, car owners were advised to idle their car for a few minutes to allow the engine to warm up.

Today, we don’t have carburetors. We have the electric fuel injectors. The car is fitted with sensors that measure the outdoor ambient temperature. This system allows the electric fuel injector to adjust the air-fuel mixture to account for the cold weather. Typically, an electric fuel injector will create a fuel-rich air-fuel mixture by releasing more gasoline, compensating for low evaporation levels.

You don’t need to warm up your car.

What’s wrong with warming up your car? Not much except it wastes time and fuel and contributes to pollution.

Lim’s Auto Body is a full service auto body and mechanical repair shop locally owned and operated in Largo, Florida. For more information, go to our web site www.limsautobody.com or call (727) 422-3232.