What to Do with Severe Engine Sludge?

[Pedro]

Use plastic bags or film to cover the car's electrical components, then cover the film with a semi-wet towel to prevent high-pressure water from entering the electrical devices. First, use a water gun (with moderate pressure) to wet the exterior of the engine directly, then evenly spray engine exterior cleaner on the engine and around the engine compartment. Use a fiber brush to clean all accessible parts inside the engine compartment, then quickly rinse off the loosened dirt with a water gun (with moderate pressure). Thoroughly clean the exterior of the engine. Finally, use a semi-wet towel to dry the engine, and use a machine to suction or blow-dry areas that are hard to reach by hand.