Full-synthetic, low-viscosity DURON™-E UHP 5W-30 minimizes sludge and piston top groove deposits to help maintain like-new engine conditions and subsequently promote fuel economy. Made up of 99.9% pure base oils, composition helps product maintain its properties longer and is important in preventing oxidative thickening and viscosity breakdown. Product meets performance requirements of ACEA European Service Categories E6, E7, and E9 as well as the API Service Categories CJ-4/SN.