In winter，why do we need to warm up the refrigerated truck before using it ?

As a necessary tool for cold chain transportation, refrigerated trucks are still needed even in winter. However, it is necessary to warm up the refrigerated truck before driving it in winter. Why is this necessary?

Due to the low temperature in winter, the normal operating temperature of the engine is about 90 ℃, so a huge temperature difference is formed. If you drive directly on the road at this time, it will seriously affect the operation of the engine.

Therefore, warming up the engine in winter is necessary. The term "warming up" refers to idling the engine for about one to two minutes after starting it, allowing the engine and transmission to undergo a preheating process.

It is recommended to warm up the engine for a period of time, preferably within three minutes. During the winter, idling the engine in place should not exceed three minutes. It is advisable not to immediately turn on the heater after getting into the vehicle.

In winter, many vehicle owners are eager to turn on the air conditioner as soon as they get into the car. However, this is actually a mistake. The heater in a vehicle obtains heat from the residual heat of the engine. When you first enter the vehicle, it is in the warm-up phase and not at its normal operating temperature. Therefore, turning on the heater immediately would increase the circulation of the coolant, which can prolong the warm-up time.

When the engine operates at low temperatures for an extended period, the fuel consumption significantly increases due to the higher concentration of the fuel-air mixture. Therefore, it is advisable not to immediately use the heater after starting the engine, as it would result in excessive fuel consumption without effectively providing warmth.

Therefore, it is essential to remember to warm up the refrigerated vehicle before driving it in winter. Only by doing so can we ensure the smooth operation of the refrigerated vehicle and maximize its lifespan.