VALVOLINE 
Valvoline’s Premium Blue® Engine Oil is the only oil approved by every major diesel engine maker and endorsed by Cummins. When used with Ultra-Low Sulfur diesel fuel, this product technology offers a long-life, extended drain capability and helps maximize engine and aftertreatment durability.
Valvoline also supplies a range of gear oils and greases, Zerex® antifreeze/coolant and Eagle One appearance-care products to keep your hardworking ProPickup running strong and looking great, even in the toughest work environments.
Also check out Valvoline’s Instant Oil Change servcie centers that will take care of your fleet vehicle lube service needs faster than you can do them yourself. We had the Big Boss fully serviced by our local VOIC center in Jackson, Mississippi where they changed both engine and gear lubes to full synthetic using Premium Blue engine oil and SynPower gear lube.
