Description Wynn’s 325ml Engine stop leak 50664 maintains engine seals in both petrol and diesel engines. This oil additive restores the elasticity of rubber and neoprene seals and O-rings to prevent engine oil leakage without dismounting. Features Prevents and stops engine oil leaks without demounting. Restores the elasticity of rubber and neoprene oil seal rings and O-rings. Lubricates and maintains engine seals in good condition. Will have no effect on the viscosity or performance of engine oil. Is compatible with all mineral and synthetic, single- and multigrade oils. Does not harm catalytic converters. Suitable for Recommended for all petrol, LPG and diesel engines of vehicles and stationary equipment. Works on all rubber and neoprene seal rings in the engine. Effective for excessive leakages at the rubber or neoprene valve stem seals.
