I have a '94 Johnson 150 on a 28' pontoon. The last trip out I had 7 other people on board and I normally run at about 3000rpm and this time out it used alot of fuel. I'm not sure if it was a strong headwind or what. The motor runs great. No missing, excessive smoking, sputtering, etc. How many GPH should I expect to burn with this rig at 3000 rpm with 7 or 8 souls on board?<br /><br />Thanks guys,<br />Danny K.