Shell Rotella 550019916 T Triple Protection 15W-40 Heavy Duty Engine Oil -1-5 Gallon Pail Conventional motor oil compatible with most vehicles Motor oil weight: SAE 15W-40 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 15W-40 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