I have a 2002 [from new ] mercury
bigfoot 40 hp four stroke that has only done 200 hrs, when i cross our local gulf here in Adelaide from my moorings at garden island i can make a beacon which is called Middle Spit beacon of off a small town called Pt Vincent which is approximately 30+ nantical miles away on one tote tank [22litres approx] at 3500 rpm
which depending on conditions gives us 6 knots since my trimiran is 36ft long and weights 5.5 tn i consider this excellent value having had 2strokes in the past there is no-way that they could compare with this type of economy and lets not get into the sound difference ....... but thats another can of worms to open isint it !!!!!!!!!!!!!