Delo 400 SDE with ISOSYN Advanced Technology is an API CK-4 heavy duty engine oil specifically formulated for 2017 greenhouse gas (GHG 17) compliant diesel engines designed to meet lower CO2 emissions and improved fuel economy, in addition to EPA 2010 compliant low emission diesel engines with Selective Catalytic Reduction (SCR), Diesel Particulate Filter (DPF) and Exhaust Gas Recirculation (EGR) systems. It is fully compatible with previous engine models and previous API Oil Service Categories.

• For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual
• Formulated with advanced additive technology
• Recommended for older four-stroke diesel and gasoline engines
• Provides excellent control of deposits and sludge, minimizing oil consumption and optimizing engine overhaul intervals