abypfcs
Well-Known Member
With our 18' and 60 HP Yamaha, we have a 21 gallon tank. It looks like I am getting approx 1.2 gallons per hour. Our top speed is 18 MPH, but often only go 10 -15 mph.Score one for the 115HP. Seeing that we never pull tubes or ski and our preferred speed is 10 - 15 mph we use between 2.5 - 3 gallons per hour. [still wish I had the 150]