Read more: 15 Popular Oil Filter Brands, Ranked I mentioned that it's relatively easy to clean coolant off your car's engine.

Watered-down oil can ultimately lead to engine failure ... No matter how you're cleaning your engine, it shouldn't be hot.

To achieve equipment manufacturers’ specifications for oil cleanliness, Chevron offers the ISOCLEAN program that pre-filters ...

One of the areas considered is the oil used for engine lubrication. Engine oil provides cooling, cleaning, wear protection, rust and corrosion protection, and lubricity for moving mechanical parts.

Synthetic oils offer significantly better protection to the engine and its components compared to mineral oils.