The FB sounds so similar to what I used before. I used a bottle and a half, butttt, my cladding was in terrible condition lots of really deep scratches ect. And I was dialing in the process I.E. paint brush, applicator pad, foam brush. I expect to use under a bottle this time with better original condition of cladding, and just using a foam brush.

And when I did mine it took three coats. Also if these are the same thing. You want to have a little left over for touch up. Especially of you occasionally slob (drip) gas at the gas cap.