It takes several minutes to warm up the car in summer.
The in-situ hot car used to be a carburetor car, but now the EFI car can theoretically not be hot. But when the car just started, the oil lubrication was not good and the water temperature was low, so it started immediately. The machine needs a high speed, which is very harmful to the machine. Moreover, the instructions of some models also indicate that the car should be preheated before use, so that novices can develop good operating habits. The correct way to warm up the car should be to go on the road 30 seconds after starting to 1 minute. But don't drive at high speed at this time, keep low speed, and the engine speed should not exceed 3000~3500 rpm. Generally keep 2000 rpm. After the engine temperature rises to the normal operating temperature.