trayscool
Seaman Apprentice
- Joined
- Mar 31, 2008
- Messages
- 46
I have a 1998 Mercury 150efi offshore on my 21' Striper Cuddy. The motor runs perfect, idles perfect, and starts just like a car everytime. It has plenty of power for my boat. I was wondering what the ideal RPMs are to run this motor. On my most recent trip I ran it at 3500rpms and I was going about 25mph. It seems to run best from 3000-4000 but hesitates below 3000rpms. What will give me the best performance and mpg for this motor? Im not concerned with speed, only getting the best mileage and longevity from the motor. thanks in advance