Description 1 Quart Bottle Recommended for API CK-4/CJ-4/CI-4 Plus/CF/CH-4/CF-4 Popular for Light Duty trucks including Chevrolet Duramax, Dodge Cummins and Ford Power Stroke Best choice in medium and heavy-duty diesel truck engines for maximum durability Improved drain intervals provide excellent value for commercial fleet use Also for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4 E7/E9, MB 228.1/228.31
