"santacruz" wrote in message
...
Excluding monel (very $$) - best diesel tanks are said to be alum -
not s/s a the sulphur in diesel attacks the weld areas in the tank and
can cause pin hole leaks.


I agree on the comments about S/S and diesel, a NO-NO.

Aluminum would be the logical choice for gas or diesel in a custom built
tank. If your not restricted to an unusual tank shape, there are many ready
made plastic tanks available upto about that capacity. Tempo comes to mind..

Personally, I wouldn't want to store gasoline (long term) in plastic tanks.

Steve
s/v Good Intentions