Liqui Moly Motor Oil Saver is an engine oil additive designed to maintain and regenerate engine seals, helping to prevent oil leaks and reduce engine noise. It also counteracts oil dilution and reduces oil consumption via piston rings and valve guides. This formula restores the elasticity of engine seals made of rubber and plastic, such as valve stem seals and shaft sealing rings, preventing oil leaks and reducing the environmental effects of oil puddles under the vehicle. The additive helps maintain oil integrity by counteracting dilution, which results in smoother engine performance and extended engine life.