I have a question on this matter:
I use 1oz per 5gal in a 20gal fuel cell. (4oz.)
Question:
How often does a person add the F/P to the tank?
Every tank?
Every other tank?
Every 3rd tank?
Or wait until u see a drop in MPG? (which IMHO) why let the system get that carboned up again?
Or maybe...