The best I see on my boat and motor so far have been about 3.5 mpg, and that’s only in perfect conditions, normally 3.2 mpg is the best I can get on any other day.
Lets keep in mind I have a 19′ boat with a 200 yamaha ox66 motor on it, fuel injected, not an HPDI motor.
Now that being said, I do think my calibration is off, but frankly I haven’t had the time on the water to prove it yet. I have no calibrated it all it, it’s 100% stock settings, which tend to be fairly accurate, I just don’t know at this point.
Secondly I wouldn’t say my boat is set up perfect yet, I think I should be about to be in the 4+ range for mph and an average day. I think I could use a different prop and maybe some motor height.
And overall I’m not really concerned about the ultimate gas mileage at this point, to me it’s more of hey I gotta cover a bunch of ground, I’m not in a hurry, I’ll find a sweet spot and keep it there, I’ll get there when I get there. In most cases I just like going fast
and WOT is never going to give you the best gas mileage, I think it says I use 22-24 gallons per hour at WOT
That’s probably a little better than 2 mpg.
So I knew when I bought the boat gas mileage wasn’t going to be great, but 80% of my fishing is nothing more than me motoring out to a spot dropping the trolling motor and fishing, maybe motoring around a couple times to different spots, I bet I use 5 gallons or so on those trip, mainly for warming up the motor nice and easy, and a couple trip around the lake at the end to make sure the carbon got “blown out”
