Mobil 1 Turbo Diesel Truck 5W-40 Is A Full Synthetic Heavy-Duty Diesel Motor Oil That Helps To Extend Engine Life While Providing Long Drain Capability And Potential Fuel Economy Benefits For Modern Diesel Engines Operating In Severe Applications. Utilizes State-Of-The-Art Technology To Help Deliver Exceptional Performance And Is Recommended For Use In All Super High-Performance Diesel Applications, Including Modern Low Emission Engine Designs With Exhaust Gas Recirculation (Egr), As Well As Refrigerated Units And Well-Maintained Engines. This Formula Provides Thermal And Oxidative Stability To Help Prevent High-Temperature Deposits And Low-Temperature Sludge Buildup. Its Exceptional Low-Temperature Pumpability Allows For Easy Engine Start-Up And Helps To Reduce Wear. Mobil 1 Turbo Diesel Truck 5W-40 Is Recommended For Use In A Wide Range Of Light-Duty Applications Such As Turbo Diesel Pick-Up Trucks, As Well As Heavy-Duty Applications And Operating Environments Found In The On-Road Transport And Off-Road Mining, Construction, And Agricultural Industries. The Performance Of Mobil 1 Turbo Diesel Truck 5W-40 Is The Result Of Extensive Cooperative Development Work With Major Equipment Builders And The Application Of The Latest Lubrication Technology.