The Shell Rotella T5 Synthetic Blend 15W-40 Diesel Engine Oil is a high-quality motor oil specifically designed for diesel engines. With a volume of 2.5 gallons, this oil provides the necessary lubrication and protection for your vehicle's engine. Its synthetic blend formulation ensures a high level of performance and durability, making it a reliable choice for your diesel engine. Trust Shell Rotella to keep your engine running smoothly and efficiently.