Valvoline Premium Blue, Gallon, 15W40, Diesel Engine Oil, Designed To Provide Advanced Lubricant Performance In Modern, Emissions Treatment Equipped Diesel Engines, Including All Types Of Exhaust Gas Recirculation & Diesel Particulate Filters, When Used In Conjunction With Ultra Low Diesel Sulfur Fuel It Offers A Long Life, Extended Drain Capable, Balanced Formulation Which Helps Maximize Engine Durability As Well As After Treatment Cleanliness, Endorsed By Cummins Engine Company & Has Been Tested Extensively By Cummins In Stationary & On Road EGR Engines, Including Those Equipped With DPFs, It Is Approved Against The Ces 20081 Specification, Recommended By Cummins For Use In Dodge Ram Turbo Diesels.