The folks at Mobil 1 are happy to release their new fully synthetic Mobil 1 Turbo Diesel Truck 5W-40 motor oil with SuperSyn. Engineered for hard-working diesel engines, it offers outstanding wear protection, oil consumption control and performance reserve. Whether hauling, towing heavy loads, driving off-road, or just dealing with stop-and-go driving. Visit your local Mobil 1 dealer for more info.