Renewable Lubricants Bio-SynXtra heavy duty plus super high performance motor oil SAE 15W40 is specially formulated to meet the requirements for EPA 2007 compliant diesel engines equipped with after treatment devices such as diesel oxidation catalysts and particulate filters that require low ash. This patented formulation contains the most advanced chemical technology available for high performance, heavy-duty turbocharged and supercharged diesel and gasoline engines that require API Service SJ, SL, SM, SN/CD, CDII, CE, CF, CF-2, CF-4, CH-4, CI-4, CI-4 Plus, CJ-4, and ACEA E2-96, E5-02, ACEA E7-02, MTU Type 2, CAT ECF-1-A, ECF-1, ECF-2, ECF-3, VOLVO VDS-3, VDS-4, CES 20081, Mack EO-O Premium Plus, Detroit Diesel DDC 93K218, Daimler Chrysler MB228.3, MB228.31. Renewable Lubricants formulates this lubricant to exceed most API requirements. RLI's patented chemistry is blended into the highest quality biobased and synthetic base stocks and provides extended engine life relative to other conventional oils without this proven chemistry. Power-shift transmission performance for Cat TO-2, Allison C-3/C-4. SAE grade: 15W40.