STP Oil Treatment is a premium engine additive formulated specifically for petrol engines. This 300ml bottle delivers advanced protection and performance enhancement through its specialized chemical composition. The treatment works by reducing friction between engine components, minimizing wear, and extending oil life. It helps improve fuel economy, enhance engine responsiveness, and maintain optimal lubrication under demanding driving conditions. Ideal for both regular maintenance and addressing existing engine performance concerns, this professional-grade solution is trusted by automotive enthusiasts and technicians. Simply add to your engine oil during routine oil changes for maximum effectiveness. Part number 65493/00406.