Pure Synthetic Oil Stabilizer; Gallon. In Ford Powerstrokes we suggest one quart of Pure Synthetic Oil Stabilizer per oil change.Features & Benefits Light enough for an import - tough enough for a semi.
API CK-4 / SN CERTIFIED 15W-40 FULL SYNTHETIC DIESEL OIL. Versatile Compatibility: Backward compatible with all previous four-stroke diesel engines and suitable for gasoline heavy-duty applications requiring API SN.