I'm using it - third tank.
Fuel pressure is still steady at 10psi idle. Havent changed the filter yet, as I'm waiting for my guage to tell me when. It hasnt dropped from what I'd consider normal, I'm reading pressure on the oulet of the fuel canister.
The truck smokes a LOT less at idle. Smokes about like a stocker on 1X1. 5X5 soot balls are a lot lighter in color. Smells a lot like a greasy steak on a propane BBQ. My mileage has dropped 0. 2mpg so far.
Giving my hard earned cash to Amercan farmers instead??? Priceless... .