PC-7 is also a great fix for leaking gas if you want to fix it externally. We used to patch gas tanks on tool wagons in the junkyard with it. The tank would fail around it but not at the repair.The repair really takes a beating running around the junkyard too.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!