Getting mixed info on what grade fuel?

Cudos

Seaman
Joined
May 20, 2010
Messages
69
I'm confused, I have been told that I should "only" run 87 octane in my 1986 ER 120. I have read that 87 is not worth using in a lawnmower let alone a high perf outboard and that a higher octane should be used.

Cans someone chime in here please

Thanks
 
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