I have115, Mercury 4 Stroke. Along 9 hp Tiller 4 Stroke. Super Quiet, super fuel efficient. I use one tank all weekend. Whereas my old 90 Mercury 2 stroke, loud, thirsty. I estimate the 4 Stroke is 80% more efficient than my two stroke. The two stroke was faster on the plane. However the four stroke is no slouch.
Boat 18.5' Hewescraft -1100lbs, motor 115 hp merc 450lbs. Troller 9.9 80lbs.
Nice to have conversation doing 45 mph on lake.
