Regular or Super Unleaded? Marine Stabil on fill up? Hard to find anything other than 10% ethonal without paying 50 cents more a gallon.
Regular or Super Unleaded? Marine Stabil on fill up? Hard to find anything other than 10% ethonal without paying 50 cents more a gallon.
Per Don Weed in the Mercury forum...he advises to run 87 or 89 at the most (even if it has ethanol). He also has a cocktail of Mercury ingredients that he recommends to cut down carbon deposits.
http://www.bbcboards.net/showthread.php?t=444510
2002 Ranger 175VS - Mercury 125
2006 Ranger Z20 - Mercury 225
2008 Ranger TR-177 - Mercury 115
1987 Ranger 350V - Mercury 150
2010 Ranger Z521 - Mercury 250
2012 Ranger Z518 - Mercury 200
2015 Ranger Z521C - Mercury 250 ProXS
1993 Ranger 481V - Mercury 175 ProXS
2018 Ranger Z519 - Mercury 225 ProXS
2020 Ranger RB190 - Mercury 115 ProXS
The newer Merc's are built for 10% or less. I use unleaded 10% 87 and DFI oil. I use Quickkleen every other gas up and Quickkare when I know I won't be getting out for a few weeks (rare). I did change out the fuel lines from the tank to the ethanol proof stuff. Had this motor two years now without any fuel related issues at all.
Lake Norman, N.C./New Britain, CT.
An Khe 66-67
I've been doing this in my 250 going on year #6.Originally Posted by Ka'King
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