Is anyone using Zmax fuel or oil additive in their FGT? Shelby advertises he uses it in all his cars. I am about to change the oil and was thinking about it.
Bony...Before you say something, I am new to this forum but did try to search before asking this question.
Thanks!
Bony...Before you say something, I am new to this forum but did try to search before asking this question.
Thanks!