unsalted
Active Member
- Jan 21, 2022
- 264
- Boat Info
- 2001 Sundancer 310
- Engines
- Twin MX 6.2L MPI w/Bravo III Drives
This is one where YMMV definitely applies. This site gives fuel consumption of various mercruisers over a range of RPMs. I selected my engine but it does have an entry for 7.4L. https://www.boat-fuel-economy.com/mercury-mercruiser-377-magnum-6.2-fuel-consumption-us-gallons