Review on 16 oz Genuine Ford Fluid VC-8 Diesel Cooling System Additive - Optimize Your Search by Mike Sutherland

Added coolant to my 2017 F-250. I gave it an average rating as I have no idea if it did its job. I had to drive to the dealer to reset the 'add coolant additive' message. Maybe I didn't need to add it as it was a malformed message. It doesn't look like you're low on fuel, and when you fill up the tank the gauges don't show you're low on fuel. Too many gimmicks on new cars. You never know if the system will need an additive.