Posted by tedious on 01/13/18 - 2:58 PM
#12
Jack, it's certainly up to you, but your math is off - from Whaler's performance data, a 150 Four Stroke used 0.5 gallons per hour at 600 RPM and 0.8 gallons per hour at 1000 RPM - that is 1.89 and 3.02 litres per hour, not the 6 litres you used in your calculations. I would not be at all surprised to find that the fuel consumption of the 9.9 is about the same.