The engine temperature is basically normal.

It is normal that the temperature of automobile engine is between 80- 100℃, and it is not good that the temperature is too high or too low.

The hazards of low engine temperature are: 1. Excessive heat dissipation of cylinder wall leads to the decrease of air pressure in cylinder, the increase of consumption and the decrease of thermal efficiency; Second, unburned gasoline enters the crankcase and damages parts; Third, the viscosity will increase, the lubrication effect will become worse, and the bearing wear will be aggravated.

The hazards of excessive engine temperature are: 1. Excessive cylinder wall temperature will destroy the lubricating oil film on the cylinder wall, reduce the lubrication performance and accelerate the wear of parts; Second, the piston and piston ring in the cylinder damage the fit clearance due to high temperature expansion, which leads to increased wear resistance and may lead to seizure in severe cases; Third, the working temperature of the engine is too high, the inhaled combustible mixture expands thermally, and the amount of mixed gas entering the engine decreases, which leads to the decline of engine power, knocking and premature combustion, which damages the normal operation of the engine.