{1} Clean the engine surface dust and oil: the engine surface can be cleaned with a brush or compressed air, and then select the appropriate engine external cleaning agent for scrubbing treatment. Note, do not use gasoline to replace the special cleaning agent to clean the engine surface.
{2} Treatment of surface rust: rust spots on the surface of cast iron and other metals should be found and treated as early as possible. They should be treated when small spots are generated, so as not to be difficult to deal with after spots are expanded. You can use rust remover spray in the rust spot, and then scrub.
{3} Cleaning of engine electrical circuits: parts of engine electrical circuits should be cleaned with specific care products. If long-term water and ordinary detergent treatment, it can only accelerate the aging of the plastic shell and wire harness rubber, affecting the car start and running.
