Shell Rotella T6 10W-30 diesel engine oil is a full synthetic motor oil that features exclusive Triple Protection Plus technology. It's formulated with fully synthetic base oils plus advanced additives to protect against wear, deposits, and oil breakdown. It also provides lower oil consumption for reduced maintenance costs, improved wear performance versus API CJ-4 technology, extended drain capabilities for more uptime, improved protection against oxidation for increased fuel economy, and a low ash formulation for emissions system compatibility. Suitable for virtually all modern low-emission heavy-duty engines and older hard-working diesel engines, Shell Rotella T6 10W-30 is an excellent choice for on-highway fleets, general haul, construction, agriculture, public-transport operators, and diesel pick-up trucks. Shell Rotella T6 is backed by a limited warranty valid up to 15 years or 500,000 miles (whichever comes first), guaranteed*. (*Shell Rotella Limited Warranty: Up to 15 years or 500,000 miles, whichever comes first, guaranteed, if you exclusively use Shell Rotella T6 Full Synthetic heavy-duty engine oil and meet enrollment mileage and vehicle manufacture date requirements. Enrollment required. Keep your receipts. Other conditions apply. See Rotella.com/warranty to enroll and for full details and terms.)