Good Day to All! I hope All are enjoying a pleasant one.
I have a Lil 'ol Ford LT80, what has a metal gas tank with rusty innards. I think I'm going to do the Apple Cider Vinegar trick, with an assortment of nuts, bolts, nails, and what-have-you... shake it all about... Then I'm going to clean it out real good and dry it.
I did a little research, not much really, but I thought I'd pour some of this stuff in it: Rust-Oleum Automotive 248659 8-Ounce Rust Reformer Bottle, Black (Amazon Prime $5.77)... and shake It all about...
...then after all that, which is really not much, and Very Inexpensive... keep the tank Full of Premium Gas and a bit of Sta-Bil after every time I use the tractor... and of course keep an eye on my see thru in-line fuel filter to make sure the tank is remaining clean of rust flakes.
I'm thinking it's cheap enough, and easy enough, that I can always do a 2nd treatment if I feel it's necessary. I believe if the Rust-Oleum Rust Reformer does as it says, and converts the rust... then that should be the name of that tune... I think once the tank is clean and converted, keeping it FULL with the Sta-Bil, should keep water from forming inside the tank, where it can create rust to begin with... whaddayathink?
Best Regards & Good Health to All,