APU of a different breed

[snailexpress]

(06-16-2017 )Mrkentee Wrote:  A guy had a generator on his truck. Real nice set-up. But the fuel tank on the generator was removed. He had a split fuel tank for the truck. The side which would have had hydraulic oil had gas, and a 1 psi pump to supply the generator. Reason being, he said gravity fed gasoline systems were illegal on a truck.
Do you know anything about that?

It's OK to use generator fuel tank.
But something like     is no-no