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2003 Merc 115 Questions
Posted: Thu Jul 01, 2010 7:25 pm
by ezcartdude
Hello All. I have spent the last 2 months working on the Toon. Ready to refuel launch and enjoy this weekend. My question is what octane fuel should I be running in my four stroke EFI Merc? I am also concerned about ethenol in todays fuel, I bought some of the new starbrite marine fuel treatment for this reason. What are others using? Thanks for the help.
Re: 2003 Merc 115 Questions
Posted: Thu Jul 01, 2010 11:45 pm
by lakerunner
87 octane
Re: 2003 Merc 115 Questions
Posted: Fri Jul 02, 2010 6:42 am
by dockholiday
Smart to think of the additive. I didn't an it cost me. Think starbrite an marine stabil are the top two people are using.
doc
Re: 2003 Merc 115 Questions
Posted: Sat Jul 03, 2010 11:17 am
by badmoonrising
Also, install a water separating fuel filter.
Re: 2003 Merc 115 Questions
Posted: Tue Jul 06, 2010 7:19 pm
by ezcartdude
Lake,Doc, Badmoon- Thanks for your replies. Really appreciate it. Badmoon- I take it that the factory installed filter under the hood is not enough to do the job properly? Do you recommend installing a external spin on water seperating filter? I take it this is not a problem for the engine to pump through this? Thank you.
Re: 2003 Merc 115 Questions
Posted: Wed Jul 07, 2010 8:45 am
by badmoonrising
No it's not a problem and highly recommended with ethanol fuel. I also use Startron Blue (formulated for ethanol gas).