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Thread: Lower unit oil

  1. 04-07-2013, 01:56 AM #1
    ranger89
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    Default Lower unit oil


    I have a 1989 Johnson GT 150hp motor and I want to change the lower unit oil but I have never done it before. What type of oil/lube and weight should I use.
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  2. 04-07-2013, 08:34 AM #2
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    Automotive type oils foam lower units dont have vents. Only marine lu oil should be used.
    Fin
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  3. 04-07-2013, 09:27 AM #3
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    Ranger if you have one close go to dealer and get the recommended oil. Also you have your drain and vent plug to remove. You should get new seals for those plugs and replace them.
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  4. 04-07-2013, 09:49 AM #4
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    Quote Originally Posted by cray View Post
    Ranger if you have one close go to dealer and get the recommended oil. Also you have your drain and vent plug to remove. You should get new seals for those plugs and replace them.
    Yes, always replace those seals. You may be surprised as to how many people don't even know there are seals there because they often do not come out with the plug. New ones are very cheap insurance against water intrusion.
    Fair Winds and Following Seas

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  5. 04-07-2013, 03:24 PM #5
    ranger89
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    Thanks alot. I will get the seals and while I am there I will get the lube oil.
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  6. 04-07-2013, 08:40 PM #6
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    OMC HPF lower unit lube
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  7. 04-07-2013, 09:27 PM #7
    Illinois_angler
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    Quote Originally Posted by Dutch552 View Post
    OMC HPF lower unit lube
    Good luck finding that, OMC went bankrupt in 2000.
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  8. 04-07-2013, 10:03 PM #8
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    Johnson and Evinrude was bought out by Bombardier Recreational Products in 2003. OMC oil is still readily available.
    Fair Winds and Following Seas

    Bill H. PTC USN Ret
    Chesapeake, Va

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  9. 04-10-2013, 08:13 AM #9
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    Quote Originally Posted by Illinois_angler View Post
    Good luck finding that, OMC went bankrupt in 2000.
    I buy it every year at my local Evinrude dealer
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  10. 04-11-2013, 06:51 PM #10
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    Go to NAPA get your lower unit oil and buy the seals for your engine. Pretty simple. I have no interest in NAPA either. Just saying.
    Mike
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