Is it necessary to add car engine cleaner and protector?

[EmilianoDella]

It is not necessary to add car engine cleaner and protector. Here is a detailed introduction about car engines: 1. Overview: The car engine is the device that provides power for the car, determining its power, economy, stability, and environmental friendliness. Depending on the power source, car engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines. 2. Others: Common gasoline and diesel engines are reciprocating piston internal combustion engines, which can convert the chemical energy of fuel into the mechanical energy of piston movement and output power. Gasoline engines have high speed, small mass, low noise, easy starting, and low manufacturing costs. Diesel engines have a large compression ratio, high thermal efficiency, and better economic and emission performance than gasoline engines.