Mine is an 82, that has been completely redone in the last 6 years. G500, G650, G750, new paint and new interior. I think there are 450 hrs on the engine. I see 150 knots at 65% power at 6000 feet, with 13 to 14 gph. If I go upto 75% power, the fuel burn will be 16 gph and yield about 158...