Old evinrude question


Old 05-26-07, 04:51 AM
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Join Date: Jan 2005
Location: Texas
Posts: 478
Old evinrude question

Just acquired a 1953 model 15 HP evinrude. Runs like a new one!!! The gas mix on it calls for 32:1. My question is: with the better 2 cycle oils today,would it be OK to mix 40:1?
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Old 05-26-07, 05:07 AM
Join Date: Aug 2005
Posts: 2,268
No, no, no, no.... use manufacturers original specifications.... Those old engines tend to run "wet" (oily) and you'll be fouling plugs on a semi-regular basis (no big deal, clean em and go) - but they need the lubrication to keep running properly.
Old 05-26-07, 08:54 AM
Join Date: May 2007
Posts: 115
I totally disagree! We have 1950's era motors we use up in Canada and the Johnson/Evinrude dealers up there advised us that with the new 50/1 oils they have, its OK to use a 50/1 mix with the old motors, so that's what we've done for the last 15+ years with no problems.
Old 05-26-07, 02:18 PM
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Join Date: Oct 2002
Location: Hamilton County, Ohio
Posts: 4,288
I would be inclined to keep the mix originally recommended. If it has run 54 years and runs like new, why mess with the mix. I don't think that you will save enough on oil to retire early.

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