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Old 06-05-2023, 07:25 PM   #6
California Travieso
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Location: Moreno Valley, CA
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Default Re: Gunk in gas tank

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Quote:
Originally Posted by Richard in Anaheim CA View Post
Gordon,
I have cleaned tanks in the car using carburetor cleaner and also phosphoric acid referred to as "metal prep" or generic, and much cheaper,"Driveway cleaner". It is a bit costly because you need to fill the tank about half full and let sit for some time.

The last one I cleaned was much cheaper and worked pretty good. A half tank of E85. Yes,, available at the pump at least in California and somewhat cheaper than gasoline.
I left in a couple of days and shook the car whenever I walked by.

RICHARD
Anaheim CA

Richard,

I assume that the E85 gas dissolved the residue from the old gas that was left in the tank; however, that wouldn’t take care of any rust in the tank. I suppose you could also use 5 gallons of something like Rust911 for the rust.

David Serrano
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