Genuine Ford Accessories XO-15W40-QSDW SAE 15W-40 Super Duty Diesel Motor Oil - 1 Quart Bottle Motorcraft SAE 15W-40 super duty diesel motor oil is suitable for power shift applications requiring Allison C-4 fluid Can be used in older engines where the manufacturer recommended API categories CD, CF-4, CG-4, CH-4, CI-4 and CI-4 plus It meets the requirements of international, Cummins CES 20081, Volvo VDS-4, Mack EO-O premium plus, Detroit diesel 93K218 and Caterpillar ECF-3 It satisfies the warranty requirements of Ford Motor Company as well as most other domestic and import diesel engine manufacturers High-quality diesel engine oil formulated with premium hydro processed base oils and unique additive technology