Fuel Consumption

[rock-n-troll]

I just purchased a 32 Donzi with 250efi's. The motors checked out great and I'm looking forward to our first trip. Any idea on what kind of fuel we can expect to burn? I've read a lot of good things about these motors and I know they are thirsty engines but I'm just trying to get an idea of what to expect. We usually run 50 - 60 miles out to start trolling. Thanks for the help!

[cavitating]

I had a 27 footer with twin 225HP V8's and I was getting about 1 nautical mile per gallon.

[wetspot]

A friend had Yamaha 250s EFI on a 30ft Scarab. It got about 0.8 mpg at trolling and 1.2 mpg cruise (4200 rpm, approx 45 mph) and about 1mpg WOT.

[ocnslr]

Are you referring to Yamaha Saltwater Series II, OX66 engines?

Good rule of thumb for WOT fuel burn is HP/10 for a two-stroke like these. That would be about 25GPH at WOT - and I can tell you that is very close...

We have an OX66 250HP and burn 16-18GPH at cruise of 4200-4600RPM. Can easily push it to 20GPH at faster cruise. These are by Floscan.Your actual performance may be better or worse, depending on many factors.

Brian

[evernic]

Just guessing here but on a Donzi, they're probably mercs, should cruise at 1.0-1.4 mpg, troll 1.4-1.6 mpg, WOT, yikes less than 1 mpg. i run 2x225 merc EFIs, thats about what I get on a 28 ft WA cruiser. Your hull is probably a little more efficient and you have more HP.

[rock-n-troll]

These are mercs on this boat. I just sold a 27' Contender with the Yamaha motors and we would burn around 120 - 140 gallons on a full day of fishing. I'm guessing the mercs will burn a little more???

[johno33772]

I have 250 Efi's on a 29, not as bad as everyone kept telling me. I will know exactly after this weekend. Installing Smartcraft monitors this week. They get real thirsty at full throttle, however at cruise rpm's not too bad.