Lubriplate super GPO 30 motor oil is premium quality engine oil for all season use in commercial mixed fleet engine operations. Lubriplate super GPO 30 motor oil is manufactured to meet the performance requirements in all naturally aspirated, turbocharged and supercharged diesel engines as well as all four cycle gasoline engines. Lubriplate super GPO 30 motor oil is recommended for all major automotive diesel and mixed fleet (diesel/four cycle gasoline engines) operations in all service and under all operating conditions where the equipment owner specifies the use of single grade engine oils.