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  1. #1

    Default Engine oil very dark

    I have around 50 hrs on my boat and oil was changed at 13. Boat had about 30 hours on the oil when I noticed it was really dark. Just changed it at around 40 hr mark and it's pretty black. Is this normal???


    Jordan
    2014 moomba möbius lsv

  2. #2

    Default Engine oil very dark

    I had a 4.3 merc 190hp bowrider before and through till 230 hrs it never got dark betwean 50hr changes was always clean like new


    Jordan
    2014 moomba möbius lsv

  3. #3

    Default Engine oil very dark

    No opinions on this??? Guess no one cares about their oil other than level

  4. #4
    Join Date
    Dec 2012
    Location
    Ennis, TX
    Posts
    193

    Default

    Each time I have changed mine at the 50 hr marks its been extremely dark. These engines work harder and are stressed more than your IO motors. That is why you change oil every 50 hrs.
    Shane
    2012 Mojo 2.5
    EXILED
    4 XM9 Tower
    6 SX65M Cabin
    1 XI 800.4
    1 XI 1500.1
    1MX 30.2
    EXILE ZLD
    Green LEDs

  5. #5

    Default Engine oil very dark

    Thanks! Feel better knowing I'm not the only one with dark oil. Seemed weird to me but just wanted some opinions to know if it's bormal

  6. #6
    Join Date
    Nov 2010
    Location
    Katy, TX
    Posts
    4,184

    Default

    Mine never looks dark on the dip stick but in the PELA 6000 it looks kind of dark.
    David

    2008 Mobius LSV, Gravity III , Wake Plate, Z5, Exile SX65c's, Exile XM9s, Exile XI12D, Exile Harpoon, Exile SM600.1 , Exile Xi800.4.

  7. #7
    Join Date
    May 2010
    Location
    Salt Lake City, Utah
    Posts
    390

    Default

    I checked my oil level today out on the lake and it was a little low and dark. I've read that if you do a lot of surfing the engine works very hard and can burn some oil. I would guess that this would equate to darker oil as well. Just my guess
    Scott
    2007 Mobius LSV with a lot of great upgrades and mods

  8. #8
    Join Date
    May 2009
    Location
    Carlton Oregon
    Posts
    6,028

    Default

    You should have dark oil. That means it's doing it's job. I have never changed oil on any engine and not had dark oil. Even in my new F150 1k miles later the oil looks dirty and it's Full Synthetic 10k internal oil.

    What you should do is smell it. If it's burnt smelling then change it. Oil doesn't burn until 300+ it breaks down 350-400. Your engine temp should never get over 200 and I seriously doubt the oil is ever over 250
    Malo <--- Means--Evil or Mean One. This explains a lot.
    2013 Mojo 2.5 Skylon Tower. Bestia < Beast >
    Exile ZLD
    6 SX65M Cabins
    6 XM9 Towers
    1 XI Big 15 Woofer in a custom Fiberglass box
    1 XI 1K Harpoon
    2 XI 800.4
    1 XI 2500.1
    2 Interstate 2400U 6V Golf Cart Batterties
    Custom 1 Off Evolution Cover

  9. #9
    Join Date
    May 2013
    Posts
    180

    Default

    As long as it isn't milky our smells of gas. Your good to go. If your still worried about it send in a sample to be analyzed

  10. #10

    Default Engine oil very dark

    Thanks for all the responses! Agreed if it isn't broke don't fix it! Haha

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