Is it necessary to clean the car engine compartment? How to clean it?

[OCalvin]

Cleaning the car engine compartment is necessary. Reasons for cleaning the engine compartment: 1. Too much oil and dirt accumulated in the engine compartment can cause spontaneous combustion under high temperatures; 2. It affects the heat dissipation of the engine, leading to excessively high temperatures in the engine compartment. On one hand, this affects the engine's lifespan, and on the other hand, it accelerates the aging of internal components such as wiring harnesses, posing safety hazards. Methods for cleaning the engine compartment: Use a brush to simply clean surface dust, especially in the gaps. If dust cannot be brushed off, wipe it with a damp cloth. For stubborn oil stains that cannot be removed with a damp cloth, spray engine cleaner and scrub with a brush, avoiding spraying on wire connections as much as possible. Finally, rinse with water and wipe clean with a towel.