OEM Extended Life EURO II Antifreeze/Coolant meets or exceeds performance requirements of ASTM D3306, BS6580 and VW TL 774F. It is recommended for use in Audi®, VW®, Porsche® and other newer model light duty gasoline or diesel powered vehicles requiring a nitrite, amine and phosphate (NAP) free, OAT engine coolant. This ethylene glycol based antifreeze/coolant uses Hybrid Organic Acid Technology (HOAT) to provide extended protection against rust, corrosion and pitting caused by cavitation for all coolant system metals, including aluminum. *When properly diluted and added as an initial fill, this coolant provides up to 150,000 miles or 5 years of service life protection in automotive applications. For best results, do not mix with conventional high pH, phosphate, borate or silicate based antifreeze/coolant.