I don't know the answer either, as it was like burning apples to oranges :P For me, it was original tank - gone, original performance - gone, Bubbler and mix of oil, deisel, gas, water, and whatever else I thought of to throw in there, made a accurate guesstimate of the fuel consumed difficult to guage. I do know that I had it running for several hours (4 -5) at idle.
When I bought this generator new, I ran it for a couple of hours a day for a about a week to charge up my off grid battery bank, and the valve timing changed and it wouldn't run anymore. :facepalm: So, I got online and found the symptoms (Isn't the internet great? :earthhug:) and reset the valve clearances. The regulator portion of this chinese made generator quit, and a replacement regulator would have had to come from China with a minimum order of either 100 pieces or 1000 (can't remember for sure), but either way was NOT going to happen! :poed: I could get the regulator to work for a while if I gave it a good whack. After a week of this type behaviour, the regulator looked like it deserved every frustrated whack I gave it!. :@ So yeah, this was a perfect geet experiemental unit. :hillbilly: