Exceeds API Service Categories for heavy-duty-diesel engine oil: CK-4, CJ-4, CI-4, CI-4 Plus and older. This added layer of durability protection significantly reduces wear on bearings, rings, pistons, cylinders and valve trains.
LIQUI MOLY 20L Top Tec Truck 4450 Motor Oil SAE 15W40 For Diesel Engines
ROYAL PURPLE Duralec Synthetic Motor Oil 5 Gallon 15W40 #05154 Diesel
Schaeffer's 15w-40 Synshield 700 Diesel Engine Oil 5 Gallon Bucket
Schaeffer’s 15W-40 #700 Diesel Engine Oil Gallons (Cheapest/per gal on Ebay)
