Aye timbo,
Not the same I know, but after making some good chutney and leaving it to 'mature' in an aluminium jelly pan, said pan developed pin prick holes!

Aceatic acid!

Quote from the dreaded Wicki P "Vinegar is a liquid consisting mainly of acetic acid (CH3COOH) and water. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria."
So, as you can see the added ingredient of 'petrol' may turn to vinegar in your tank like an opened unfinished bottle of Beaujolly! I know, that's anathama to many on this site!

Anyway, as we were living 16miles from the nearest ironmongers and had a glut of apples to make into more chutney, the pan was filled with water and every water drop on the outside of the pan marked with a soft pencil. The pan was then dried off, given a wee dink with a ball pein hammer on the outside of each hole and then the holes were filled with 'JB weld'. The pan was then sat on the 'Carron' stove, like a 'Rayburn', and warmed for 24 hours. 32 years later we are still making jam, jelly, marmalade and chutney in it and the JB hasn't budged!

Just don't leave the contents in the tank to corrode it, drink it or ride it dry!

Good health to you all, Bill