Castrol RX Super Max SAE 15W40 API CH4 is a long drain premium design engine oil for new generation turbo trucks.
Castrol RX Super Turbo SAE 15W40 API CI4 Plus is a mixed fleet design engine oil especially designed to provide excellent protection for fleets containing vehicles from a variety of manufacturers. Castrol RX Super Turbo API CI4 Plus offers:
CASTROL RX ESSENTIAL 15W-40 API CI-4 Plus it is suitable for use in naturally-aspirated, turbocharged or supercharged diesel engines that use a broad range of fuel qualities.
CASTROL RX ESSENTIAL: