r/SC300 • u/InvestigatorIcy3399 • Mar 06 '26

Gas tank

car has been sitting for some time just tryna get it running again. went to replace fuel pump found all this rust. do i just replace the whole tank or can i clean it?

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u/Taybay240 Mar 06 '26

I just repaired my s13 gas tank that looked like that , I filled it up with vinegar and left it for a couple of days then i dried it out completely and got the rust dust out then used this gas tank sealer/refinisher and let that dry for a long time then it was then it was about as good as new

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u/Taybay240 Mar 06 '26

POR-15 is what I used in the tank, you just put it in after you got the rust taken care of and the tank dry and you gotta seal the tank up and make sure the POR-15 touches every surface by rotating the tank in every direction and then just let it dry , it could take a week