454 fuel consumption rates

Mercode94

New Member
Apr 12, 2019
3
Boat Info
260 overnighter
Engines
Single 454 mercruiser
I’m about to go on a bit of a long distance trip and was curious if anyone knew anything about the fuel consumption rate of the 2001 260 overnighter?? It has a single 454ci. Thank you!!
 
I’m about to go on a bit of a long distance trip and was curious if anyone knew anything about the fuel consumption rate of the 2001 260 overnighter?? It has a single 454ci. Thank you!!
Though I don’t have a boat your size I’m going to say a fair guesstimate is somewhere in the order of 15 gallons an hour @ cruising speed
 
Though I don’t have a boat your size I’m going to say a fair guesstimate is somewhere in the order of 15 gallons an hour @ cruising speed
A 454 will burn about 16gph at 3000rpms more or less depending on if carb or mpi.
Thank you both I appreciate it. I will be sticking with cruising speed pretty much the whole time. But just out of curiosity do you have any idea what gph is at any higher rpms??
 
I agree at WOT 454s will burn in the high 20s per hour. Passengers always freak out when I mistakenly log onto the fuel flow meters while they are watching the chartplotter. Next time they always bring better food, beer and wine. :D
 

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