Yes the putty works well I used it on a trans am oilpan. Knocked a huge hole it while on vacation in Oklahoma. I used four sticks to seal the hole. Drove back to Arizona with the pan patched. But i changed the pan as soon as i got it home. I also used the putty on a 78 ford crewcab 4x4's radiator that I had. Held on both occasions. But I would change the fuel cell. Gas is just more explosive than oil and water.