AEROIL Semi Synthetic Oil A767 is a special formulation using semi-synthetic lubricant base oil technology suitable for modern passenger cars gasoline engine oil exceeding the performance specification API SL. Developed to provide maximum protection for modern passenger cars, including low emission engines and high performance vehicles. It is available as a SAE 5W-40 viscosity grade to provide fuel saving and to meet long drain requirements. Suitable for both naturally aspirated and turbo charged passenger car and diesel engines. It provides excellent performance under most severe operating conditions.