MANNOL AG11 Longterm Antifreeze coolant, 1 L x 4 pack. IAT based with mineral inhibitors for yearâÂÂround protection in modern cooling systems. NAP-free and compatible with all rubber/plastic components. Prevents deposits, offers excellent heat transfer and foam resistance. Meets NF R15-601, D3306, VW TL 774 C, BMW GS 94000.