SAE 10W-40 Motor Oil (Hot Rod & Classic) 10688 10683
SAE 10W-40 Motor Oil (Hot Rod & Classic) 10688 10683 2 Sizes Available 1 Quart (946ml) or 5 Quarts (4.73L) Not for use with cars that have Catalytic Convertors. They improve the film strength between the cylinder wall and piston rings.