MAG 1 Synthetic Blend 15W-40 CK-4 HD Diesel Engine Oil 3x1G SKU MAG-64845 $48.00 Quantity discounts available QuantityPrice (0)No Reviews yet Quantity -+ Add to Cart Description MAG 1 Synthetic Blend 15W-40 CK-4 HD Diesel Engine Oil 3x1GMAG 1 motor oil is trusted by Motor Supply Co as a reliable brand for bulk motor oil for your auto shop. Ratings & ReviewsNo reviews availableBe the first to Write a Review