Chevron DELO® 400 ZFA SAE 10W-30 Synthetic Technology Diesel Engine Oil is a fuel-efficient heavy-duty engine oil formulated with ISOSYN® Advanced Technology to deliver long-lasting protection, improved efficiency, and lower operating costs. Meeting the latest API CK-4 specification, it is designed for modern low-emission diesel engines while remaining backwards compatible with older models—making it an excellent choice for mixed fleets.

This premium oil provides:

• Fuel economy benefits versus higher viscosity grades, helping reduce fuel costs

• Exceptional wear protection for pistons, rings, bearings, and valve trains

• Extended drain capability, cutting downtime and lowering maintenance expenses

• Improved oxidation stability for cleaner engines and longer oil life

• OEM approvals from leading on- and off-highway engine manufacturers

Packaged in a 55-gallon drum, this bulk option is perfect for fleets, service shops, and industrial operations that demand dependable high-volume supply. With its blend of efficiency and durability, Chevron DELO 400 ZFA SAE 10W-30 helps extend engine life, minimize costs, and maximize performance in heavy-duty diesel equipment.