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Dave Hawkins

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Have a 3 HP Johnson JW-23M fro

Have a 3 HP Johnson JW-23M from 1968.
What is the oil mixture?????
 
"if its a two stroke i would s

"if its a two stroke i would say 50:1. ive only had three two stoke boat engines but they were all 50:1, but that is just a guess."
 
"you might check out the cover

"you might check out the cover real good or even look the engine over well. mine have all been marked somewhere or another, but older engines sometimes dont have all their plates and stickers."
 
"The fuel/oil mix recommended

"The fuel/oil mix recommended by the outboard manufacturers since about 1960 is listed at 50:1. This means 50 parts of unleaded 87 octane gas to 1 part of TC-W2 or TC-W3 outboard motor oil. You probably will not see much of the older TC-W2 oil out there anymore since about 1996 or so. A marine mechanic once told me that all TC-W2 oils were regular petroleum oils while the TC-W3 were synthetic oils. I have done some research & find that apparently the oil industry & needs have now gone beyond the specifications for TC-W3. Some oil manufactures do make a synthetic blend or even pure synthetic oil, & since there is not a higher category NMMA in existence, the oil companies list that it meets or exceeds the TC-W3 specifications as there is nothing specified in the industry yet to designate synthetic oils."
 
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