Motorcraft VC-8 diesel cooling system additive. Use in all heavy-duty, diesel engine cooling systems equipped with green-colored Motorcraft® Engine Coolant meeting Ford Specification ESE-M97B44-A and gold-colored Motorcraft® Premium Engine Coolant meeting Ford Specification WSS-M97B51-A1. Designed to replace the important additives within the anti-freeze coolant in between flushes. The part number is VC-8 (replaces the old part number of FW-16). This is sold by the pint (one 16 oz bottle). Typical use is 4 oz per gallon of coolant. Shipping is via Ground based on your zip code and will show the amount once placed in the shopping cart.