Has anyone tried this?
Here are 3 discussions about FFC that occurred over the past couple of years.
My personal opinion about stuff like this is simple: If (fill in the blank) additive/device works as advertised, why don't the OEM manufacturers put it on every vehicle they sell?
https://www.ford-trucks.com/forums/7...-this-one.html
https://www.ford-trucks.com/forums/6...-catalyst.html
https://www.ford-trucks.com/forums/6...-catalyst.html
Read these and make up your own mind........




