SUPREME ULTRA MAX HD

Supreme Ultra Max HD is formulated for diesel engines only. It provides superior oxidation control, wear protection and shear stability. It offers users extended drain intervals of approximately 20% (we recommend using Royal Oil Co.’s oil analysis program for maximum oil life operation intervals). Supreme Ultra Max HD is for off-road and on-road diesel engines calling for a CK-4 engine oil.

Improved fuel economy has been seen through Supreme Ultra Max HD’s ability to lower high temperature’s and high shear viscosity during engine operation. If you’re looking for an industry leading CK-4 engine oil that will exceed your expectations you have found it in Supreme Ultra Max HD.