2005 sea ray 300 sundancer merc 5.0 B3 fuel range?

[Beerlust]

Hello,

Tanks hold a combined 170 U.S. Gallons.

With merc 5.0's pushing B3's, what kind of range should i expect on a continuous windless lake for example.

thank you

 

[ZZ13]

21-22 gallons per hour. 1.1-1.2 miles per gallon.

 

[kevin27]

+1 same on the one I had.

 

[Beerlust]

21-22 gallons per hour. 1.1-1.2 miles per gallon.

So with two engines 170g / 1.2mpg = 204 miles or would it be half that with both engines?

 

[ZZ13]

Correct. My numbers were total fuel consumption with both engines and mpg was with both engines at cruise.

 

[Beerlust]

Correct. My numbers were total fuel consumption with both engines and mpg was with both engines at cruise.

i didn't get into boating to save gas but my thirst to understand my boat coupled with this f of a winter creates questions. This is a great forum. Thank you for the input.