Schaeffer’s 15W-40 #700 Diesel Engine Oil Gallons (Cheapest/per gal on Ebay)
$51.28
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.
