Oil Leak-Stop is a special additive to the engine oil that seals the lubrication system. It strengthens the surface structure of the piston rings and the hydraulic tappet, it restores the elasticity of the gaskets and reduces piston ring oil consumption by maintaining the viscosity of the engine oil. The additive is recommended for use in extreme conditions, in case of high oil consumption and erratic engine operations. This product is mixable with any engine oil and suitable for any type of engine.