How does fuel oil polishing remove contamination?

Fuel oil polishing removes contamination by using filtration, separation, and purification techniques. Water separators remove free water, while filters trap solid particles such as dirt, rust, and sludge. Some systems use centrifuges or coalescers to separate emulsified water from the fuel. This multi-stage process ensures that the fuel is free of contaminants, improving fuel quality and extending the life of engines and equipment.