Regular maintenance is essential to keep your ride running great, stay on top of it with these convenient oil change kits for your Cummins Diesel engines, Oil Change Kit Includes: Valvoline Preminum Blue Diesel Engine Oil - 15W-40 - 3 Gallons, K&N HP-4003 Performance Gold Oil Filter, Valvoline Premium Blue is “The Only One” exclusively endorsed and recommended by Cummins, K&N premium oil filters use a resin impregnated cellulose filter media that allows for higher flow rates while providing outstanding filtration.