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So, I have 1950 with a rusty gas tank, it also needs a new sending unit, which I have.So I am looking for for opinions. Do I spend the 900.00 dollars for a new tank, If so what do I do about the filler tube. Or do I just try to clean up the tank I have. I don't want my heirs to have a problem with my decisions.What are your opinions. I trust you all

David Offenstein

My 2 cents…

If you have access to a new tank, go for it considering your description of condition.

My recent experience (no new tanks being made for my critter) is that you are 60% of the cost fixing all the holes and coating it.

How rusty is your tank? Are we talking about some surface rust, or are there holes? Rust inside, or rust outside? Pictures?? If we're talking about some exterior surface rust, clean it up, paint it and ignore my story below. But I'm assuming you're concern is rust inside if you're replacing the sending unit.

I have a '53 Cavalier and this is my gas tank story.

Before I got my car it had sat for a considerable time, long enough for the fuel to just be a hard layer of varnish on the bottom of the tank.












I dumped a jug of acetone in my tank with some nuts and chain and left it like that for a week. Every morning and evening I would slosh it all about. This is what came out and then how the tank looked. Luckily there really wasn't much rust.








I washed the tank out, treated it with CLR and then with vinegar and this is how the inside looked.





Cleaned up the original sending unit as well, which has been working great.





I cleaned up and painted the outside (black), which I was happy with at the time, but now wish I would have painted it so it looked more original. I wasn't a sticker for those details when I first got my car, I was just trying to get it running and driving.








This was over 2 years ago and haven't had any issues. I did put a fuel filter between the tank and the fuel pump so I could see if it was picking up anything, and just a few flecks, which are probably stuff that just didn't get rinsed out. I wouldn't recommend putting a filter between the tank and fuel pump on a permanent basis unless there is an electric fuel pump, which I wouldn't recommend either.

You can line your tank and while I haven't used POR-15's tank liner I have used their paint and it's good quality. Jay Leno talks with the guy from POR-15 about their products in this video. You can skip ahead to 2:00 for the part about their tank liner.

I enjoy restoring anything I can on my car so I can keep the factory original, to my car, parts as much as possible. So I would clean the tank, and then if necessary line it. But that's just how I roll, I've spent outrageous amounts of time fixing things that could have been replaced.