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It is not necessary to warm up a new car in cold weather. In fact, it is more efficient to just drive the car gently at first to allow the engine to warm up gradually. This is because modern cars have advanced systems that regulate the engine temperature and warm up the car more quickly while driving.
According to a study by the US Department of Energy, it takes about 30 seconds for a car to reach its optimal operating temperature, regardless of the outside temperature. In fact, the study found that letting a car idle for more than 30 seconds actually consumes more fuel and increases emissions compared to just driving the car.
Furthermore, the study found that letting a car idle for longer periods of time can actually wear out the engine faster and cause unnecessary wear on the transmission and drivetrain.
In conclusion, it is not necessary to warm up a new car in cold weather, and it is actually more efficient to just drive the car gently at first to allow the engine to warm up gradually.