Get more from your car with this Shell Rotella Motor Oil. Shell Rotella T Synthetic SAE 5W-40 Motor Oil is a fully synthetic, heavy-duty diesel engine oil developed especially to meet the latest engine requirements. The advanced formulation of Shell Rotella Motor Oil offers users exceptional performance and protection in combination with enhanced fuel economy potential over conventional 15W-40 motor oils. Designed for virtually all four-stroke engines, this motor oil can be used on tractor trailers, heavy-duty pickups, school buses and more. Check your vehicle"s user manual for specific oil requirements. This synthetic multi-grade engine oil meets the latest service requirements and is a smart buy for the owners of diesel transports. But this 5W-40 Shell Rotella Motor Oil today. Rotella Synthetic 5W-40 Motor Oil, 1 Gal: * Designed for virtually all four-stroke engines * Fully synthetic motor oil for diesel engines * Protects against cold climate conditions, high temperature operation and engine wear * Can be used on tractor trailers, heavy-duty pickups, school buses and more