Valvoline Premium Blue 7800 Plus Engine Oil is designed to provide advanced lubricant performance in low emission diesel engines - including engines with cooled exhaust gas recirculation (EGR) - operating under a wide variety of service conditions. Premium Blue 7800 Plus is boosted to provide enhanced wear protection, detergency, and resistance to oxidation providing excellent performance in mixed fleets, pickup and delivery, city fleet, long-haul, and off-highway applications.