Cleaning a filler neck

gdizzle said
I want to update this thread. I did figure out a away to soak in Evaporust. After a few hours, most of the rust was gone, however it left a sticky green film inside the neck, that would not wash out. I ended up having to fart around with a long bottle brush and scrub it out. Too bad as the Evaporust selling points say NO SCRUBBING REQUIRED.

I have exactly the same problem that you just dealt with. Rust at the bottom of filler neck. concerned about the residue you mentioned, did it come out OK and leave good clean metal surface? Mine is 65 Valiant, - unable to find a repop, or a clean one at this point. would you still reccommend this method?