dblr wrote:
My dad always said NOT to use the locking gas cap as they would puncture the fuel tank if they wanted it bad enough, just his opinin.
They won't -- the common plastic locking gas cap barely even slows them down, they just pry off the locking top and unscrew the remaining piece. If they're in a hurry, then they'll punch a hole in the tank 'cause it's faster than siphoning.
Here's an example:
https://www.youtube.com/watch?v=ayZCruxNiZgAnyone that's changed their generator fuel filter knows that with an RV, another convenient place to get gas is the rubber fuel line leading to the generator (even if it will only drain the tank to 1/4).