There are a lot of variables for fuel economy. Speed, how much weight is being carried, outdrive trim, clean hull bottom, etc. According to Four Winns Fast Facts, the boat should have a 50 gallon fuel tank. Our Four Winns 190 horizon (dry weight about 2500lbs) got a little over 4 mpg at about 28 mph and 3000 rpm. This is based on fuel added at the pump and approximate distance traveled. Our 268 Vista (dry weight almost 7000 lbs) can get up to about 2.3 mpg at about 27 mph and 3700 rpm when light. This is based on afuel flow transmiter and real time figures. The worst cruise speed for fuel economy is at fast displacement speeds. With no wind or current our 268 will show between 4 and 6 mpg at 600 to 1000 rpm. At 1500 to 2500 rpm and fast displacement speeds around 10 mph, the fuel economy can be around 1 mpg.
I would estimate you boat would be able to get approximately 3-3.5 mpg at ideal economy cruise. As a suggestion, I recommend running on the top half of the tank, rather than running out. You never know what else you might decide to do while on the water. Also, be aware that fuel gauges are notoriously inaccurate below about 3/4 tank.
_________________ Surface Interval: A scuba diving term for that time between dives to relax and prepare for life's next great adventure.
Current boat: '02 FW 268 Vista Previous boat: '95 FW 190 Horizon
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