Why is the car hood hot?

[MicahRose]

The reasons for a hot car hood are: 1. Just started: The engine temperature rises rapidly within seconds after starting, as the engine needs to reach a certain temperature to perform optimally; 2. Piston movement: The rapid combustion and expansion of the gasoline and air mixture in the cylinder when ignited to drive the piston movement generates significant heat; 3. Radiator heat: While driving, the wind generated by speed and the fan blow the radiator's heat into the engine compartment. Since the hood is made of metal, it heats up quickly. The heat from the engine movement, including the radiator's heat, is dispersed onto the hood. As long as the temperature gauge on the dashboard does not indicate overheating, there is no issue.