Pentosin longtime antifreeze is specifically adapted for use in alloy engines. It offers excellent advantages over other similar products: prevents lime formation, does not foam, protects against corrosion and cavitation, nitrite, amine and phosphate free, manufactured to meet the exacting standards of din, astm and dbl and is formulated for all year use. Longtime anti freeze in recommended for Porsche 924, 944 and 968 models.