Performance additives give extra protection to the base oil and enable it to protect and clean your engine, helping it to work harder for longer. They come in several kinds that must be carefully selected and blended to give top-class performance:

• Detergents keep your engine clean and neutralise the corrosive acids that form as fuel is burned.
• Dispersants remove soot and sludge and hold it in the oil to prevent blockages. This dirt can then be removed from your engine at the next oil change.
• Anti-wear additives protect your engine by forming a chemical layer between the moving parts. These additives are particularly important when motoring with high loads or during engine start-up.
• Antioxidants help to delay the natural degradation of your motor oil, hence protecting your engine more effectively for longer.
• Friction modifiers reduce the drag between moving parts to increase fuel economy.
• Anti-rust additives are essential elements that prevent engine corrosion.