Castrol GTX Diesel Motor Oil, 15W-40, 1 gal.
- Applicable for on and off road heavy duty 4-stroke trucks, gasoline and diesel light trucks and passenger cars where API CK-4, CJ-4, CI-4, CH-4, CG-4, CF-4, CF, SN are recommended
- Provides exceptional protection from piston deposits, oil thickening and valve train wear while minimizing engine sludge formulation
- Engineered to provide exceptional performance in engines operating under severe service conditions including towing and hauling under high temperatures
- Special viscosity improvers, anti-wear, anti-oxidant and detergent additives protect and maintain cleanliness in hot running, heavy diesel and heavy duty gasoline engines