i don't know.....jb weld is epoxy and it's just a band-aid fix.
BUT, I can understand wanting to try it to save $$.
but on the other hand, if it doesn't work, or if it fails, you end up doing the same job twice to fix it right.
in my opinion, it's only good for areas with very little stress, very little heat and no exposure to gasoline.
Yes, gasoline will deteriorate jb weld over time, no matter what the tube says.
I have seen it happen.
I've also seen how heat will make it weak and flake off.
but on the other hand i have seen it used, drilled and tapped to accept a bolt without failure. the difference is that this area was not anywhere near heat, fuel or oil.
I supposed it can work in certain instances, and if the mixture is right.
too much hardener and it will be brittle.
not enough hardner and it will be soft and never fully cure.
I personally do not like to use it for anything because i like to FIX things, not put a band-aid on them, and I hate to fix the same thing twice because of a failed band-aid fix.
Just my opinion.