I don't have a Ram 500, but if I did a test would be in order. It's got to be easy for someone to do. You know a measured, known, exact fuel amount in a little tank and let her rip! Then all of the guessing will be dispensed with----I'll bet a lot of fellows would really like to know what the Maximum fuel burn is so they could flight plan from that info --------I flight plan 11oz a minute with my P-80 and I never burn it all of course-------
Tony,
I could guess within 2 gallons the fuel burn on my C-182, it was a game of sorts, how close could I get to what I would pump back into the tanks starting from full tanks.
A lean fuel mixture, and I mean lean(white clean soot) @ 9,500 ft MSL cruse, 20 inches of manifold pressure and 22 hundred RPM one day I burned only 9.7 gallons of fuel per hour (actual lapse time not tach) form El Paso Int. to APA Centennial --- 4 hours 10 minutes lapse time, takeoff to touch down and I pumped 40 gallons back in the tanks ------- that was a perfect smooth ride the whole way not a ripple -----even through New Mexico very unusual-----
Lee -------