View Single Post
Old 04-01-2022, 03:00 PM   #4
DavidM
Valued Technical Contributor
 
DavidM's Avatar
 
City: Litchfield, Ct
Join Date: Aug 2012
Posts: 6,785
Fuel economy always gets better the slower you go. The limit is usually 1,200-1,500 rpm to give the engine enough load to burn cleanly and not soot up. The Lehman is probably good to 1,200 rpm.

And for your boat and motor running at 1,200 vs 1,500 will drop the fuel consumption nearly in half I would suspect.

David
DavidM is online now   Reply With Quote