DD 6v53 fuel consumption

[whattheheck]

hi, I'm new here...novice to be sure...looking at purchasing a 46' Bestway (46' LOA) MY with twin dd6v53's, 120 hp ea. naturally aspirated. Beam is 14.6'
displacement is 28,600 lb (empty so could add another 2000,lbs for gear and people).
Cruise is stated at 12knots with 15 knot WOT.
What would be a ballpark figure for fuel consumption with these engines?

 

[prokat22]

Re: DD 6v53 fuel consumption

I had a single 6V53 natural and it was 210HP not 120. Mine burned @ 6 GPH at cruise 2400 RPM. max RPM is 2800.