Help revive older, warn out engines with Nulon Worn Engine Repair. Formulated with PTFE, Nulon Worn Engine Repair provides a protective barrier between moving parts to offer excellent protection from friction and wear NOTE:Worn Engine Repair can be used with any type of engine oil. Benefits: - Reduces engine wear - Extends engine life - Reduces valve lifter noise - Reduces oil consumption - Will not affect oil viscosity - Helps restore cylinder compression - Promotes a quieter, smoother engine - Compatible with mineral and synthetic petrol and diesel oils