Merc 4.3L I/O, 2001. Will Octane Booster help with gas that was supposed to be Premium but is not? Boat tends to run-on. I have changed thermostat, idle it for awhile before shutdown, and, normally, use premium.
I have a new 2001 4.3L with an alpha 1. After each 2 hour session I need to add about an ounce of gear oil. I can see no leaks. I drained a bit of oil out of the lower drain hole and it was a bit milky but not excessive. Any suggestions?