Re: Mercury 90hp 2strokes
2 ways to find fuel consumption...
1. fill tank, run for a few hours, see how much is used.
2. Simple 'rule of thumb'... Approximate... at full throttle a 2 stroke will use about 1/10 its horsepower in US gallons per hour.
So, at WOT a 90 hp will use about 9 US gallons (34 litres) per hour....
Hope this helps.
Chris..........