I just test drove today and due to unforeseen trailer problem I did not bring home. Was getting about 1mpg with 225 and was seeing about 2.4 mpg at about 4200 rpm but I really have not had a chance to get real numbers. Had trouble with one of the I command gauges but foubd the problem. Had to still leave the boat due to a trailer problem found just before leaving ,hitting keel . Hope to pick up middle of next week. I can say this motor is strong but no way overpowered as it is rated for 350 hp.