Formula Shell Synthetic Motor Oil is formulated for improved fuel economy and to provide engine protection and performance required by modern engines. It is compatible with other conventional and synthetic oils. It exceeds all automobile and light truck warranty requirements for gasoline and turbocharged engines where an API SN and ILSAC GF-5 oil is recommended. Always follow the vehicle manufacturer’s recommendation for the right viscosity grade and API Service Category. Formula Shell synthetic motor oil meets or exceeds North American warranty requirements for U.S., European and Japanese cars and light trucks with gasoline and gasoline turbo-charged engines where API SN, SM, SL, SJ etc,. Oils are specified ILSAC GF-5 energy resource conserving standard.