Shell Rotella 550019920-3PK T Triple Protection 10W-30 Heavy Duty Diesel Engine Oil - 1 Gallon Jug Pack of 3 Conventional motor oil compatible with most vehicles Motor oil weight: SAE 10W-30 Industry-tested for up to 50% less engine wear Enhanced engine cleanliness and viscosity control Designed to control piston deposits in late model engines Conventional motor oil compatible with most vehicles Motor oil weight: SAE 10W-30 Industry-tested for up to 50% less engine wear Enhanced engine cleanliness and viscosity control Designed to control piston deposits in late model engines Shell Rotella T Triple Protection Heavy Duty oils provide triple action to help control wear, deposits and emissions to continuously adapt to the needs of your engine for protection in on and off highway applications