Is a car temperature of 90 degrees normal?

[SanTimothy]

When driving normally, the optimal temperature range for a car is between 70~90℃. If the temperature exceeds 90 degrees Celsius and remains high, it indicates abnormal engine operation. A car engine requires a specific operating temperature to function properly; temperatures that are too high or too low can adversely affect the engine's normal operation and performance. Below is an introduction to car engines: Classification of engines: Based on the power source, car engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines. Principle of engines: Common gasoline and diesel engines are reciprocating piston-type internal combustion engines that convert the chemical energy of fuel into the mechanical energy of piston movement to output power. Gasoline engines have high rotational speeds, are lightweight, produce less noise, are easier to start, and have lower manufacturing costs. Diesel engines have higher compression ratios, better thermal efficiency, and superior economic and emission performance compared to gasoline engines.