gas consumption

[stcroixx09]

i realize there are lots of variables here but i'm wondering what the difference is between my 24' regal with one 302 versus a 30' with 2 motors.I'm pretty sure i learned on here rule of thumb for my boat was going to be 2 gallons per hour n that held true.so I'm thinking about moving up in size to a 27'-30' boat with a hardtop,don't want outboards, just wondering what to expect at the gas pump. also any other thoughts to consider while shopping will be appreciated. what iv'e learned so far from my 1st boat is i want a hard top and hydraulic steering.   

[Dr Hook]

My 28' with Mercruiser Mag 350 IO takes about 15 gal per trip


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