Is it necessary to warm up the car in summer?
2 Answers
It is not necessary to warm up the car in summer. Idling to warm up the car is useless for fuel-injected engines, but it was useful for carburetor engines. However, carburetor engines have long been phased out, and no cars use carburetor engines anymore, so there is no need to warm up the car. Idling to warm up the car not only fails to quickly raise the engine temperature but also increases carbon deposits inside the engine. The correct way to drive is to start moving after starting the engine, just avoid driving at excessively high RPMs initially to protect the engine and reduce wear. Once the engine's coolant temperature reaches normal levels, you can then increase the RPMs.
I've been driving for twenty years now, and here's my real experience: in summer, you don't need to warm up the car at all. The weather is already hot, the engine's internal temperature is high, and the oil flows more easily. The system can lubricate properly within seconds after starting. Warming up the car is unnecessary, just wasting fuel and increasing emissions. A few times, I warmed up the car for half an hour in hot weather, and the fuel gauge dropped noticeably with no improvement in the car's performance. Modern car technology is advanced, with fuel injection systems allowing the engine to quickly adapt to the environment. Driving at low speeds right away efficiently warms up the engine. This not only saves money and time but also protects the environment. Remember, in summer, after starting the car, buckle up and start moving slowly—don't idle in place.
