DVAC XTREME 15W40 4X1 GAL

The Mobil Delvac Extreme is a premium synthetic diesel engine oil with a SAE 15W-40 viscosity. This oil is suitable for a wide range of heavy-duty applications, both on- and off-highway, including those with heavy loads. It is fully backward compatible with newer and older heavy-duty engine designs and meets or exceeds API CK-4, CJ-4, CI-4 PLUS, CI-4, and CH-4 service categories.

Formulated with synthetic basestocks and a boosted additive system, Mobil Delvac Extreme offers extended performance, potentially up to two times beyond OEM recommended oil drain intervals. It provides excellent wear protection, exceptional oxidation stability, and outstanding TBN (Total Base Number) retention. This oil also offers resistance to oil consumption, oxidation, corrosive and abrasive wear, and high-temperature deposits. The 15W-40 variant is designed for superior high-temperature performance in demanding industries like trucking, mining, construction, and agriculture.