Locking fuel cap?

[Dr1ft3r]

I have a few funnels like the one below. They are much better than the funnel which come with the truck. They are longer and the mouth is wider. They cost more than $1 but far less than $20.

 

As for getting fuel out of the tank by siphon, I also have one of these Flow Joe pumps. I have never used it for that purpose, I use it to transfer fuel from portable cans into tanks. But they claim the stiff white tube can be used to get past the "ball" in the the fill tube on vehicles.

[nards444]

Near impossible to steal gas from the filler on trucks built in the last 10 years.  I for one am glad GM went to the capless filler finally.