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Octane for Mercury 115 4-Stroke
I'll be running a new rig this year, a Lund Fisherman 1800 with a Mercury
114 4-stroke. I'm curious about whether I should run 87 or 89 octane. My old Yamaha 2-stroke ran much better with 89. On the other hand, I've never noticed a significant difference on 4-stroke motors in my cars. Any input? Thanks, dm |
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