HPR 5 is a premium, full synthetic SAE 5W-40 Original Equipment Manufacturer (OEM) Warranty, Fully Licensed/Approved engine oil. It features a DOUBLE LAYER of engine wear protection with FULL ZINC and Penrite's advanced EXTRA TEN technology. It uses a combination of advanced additive technology and a low shear rate viscosity modifier, to ensure additional protection against wear, corrosion, oxidation, piston deposits and sludge under tough conditions.HPR 5 is licensed by the API (American Petroleum Institute) to meet the latest SP specifications ensuring quality and satisfaction. It also exceeds the latest European ACEA A3/B4 requirements as well as JASO MA and many other manufacturers' specifications.