MILES SXR FULL SYN 15W40 is formulated with synthetic base stocks for superior anti-oxidation characteristics and enhanced high temperature stability to meet or exceed the warranty requirements of all manufacturers of diesel and gasoline engines. This oil meets the Mack EO-O Premium Plus 07 specification and API CK-4/SN specification for use in EGR-equipped heavy-duty diesel engines in high output service and can be used to extend normal drain intervals. MILES SXR FULL SYN 15W40 satisfies the performance requirements of most diesel engine manufacturers, including Caterpillar, Cummins, Detroit Diesel, Ford, Mack, Navistar, and Volvo. It can be used with complete success in over-the-road diesel trucks, off-highway diesel equipment, farm tractors, and passenger cars and light trucks with diesel engines, whether turbo-charged or non-turbo-charged, as well as gasoline engines. Since the introduction of ultra-low sulfur fuels, high TBN oil is no longer a crucial need. Field tests have shown that our CK-4 oils retain TBN levels for longer periods due to our advanced additive chemistry. This oil meets or exceeds all the requirements of API CK-4, CI-4, CI-4 Plus, CH-4, CG-4, CF-4, and SN. MILES SXR FULL SYN 15W40 also meets the extended drain requirements of Cummins CES 20076, Mack EO-O Premium Plus, and Volvo VDS.