Duralec Super Diesel motor oil is a premium synthetic oil for diesel engines needing emissions-compliant oil for 2007 and 2010 equipment like DPFs, Catalytic Converters, EGR, and SCR systems. It boosts component longevity, extends drain intervals, and improves fuel efficiency. It resists high-temperature breakdown and performs well in low temperatures to reduce startup wear. Weight: 7.7 lbs. Duralec Super 15W-40 Diesel Motor Oil, 1 Gallon Greater wear protection Greatly extends oil drain intervals Superior corrosion protection Reduces exhaust emissions Keeps engines clean API-licensed CK-4 diesel motor oils Will not harm seals Diesel Vehicle Type 1 gallon net content 7.7 lbs