Mobil Delvac Ultra 5W-30 Fuel Efficient Plus is formulated
with high quality base oils which provide excellent low
temperature fluidity, high temperature viscosity retention,
volatility control. The base oils, the additive system, and
the lowered film viscosity (HT/HS) contribute to fuel
economy improvement potential. The advanced additive system
has been expertly engineered to help prolong the life and
maintain the efficiency of emission reduction systems such
as the Diesel Particulate Filter (DPF).