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Thread: oil pressure

  1. #1
    Join Date
    Mar 2013
    Location
    I live in Dora Al. Smith lake is my home lake
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    415

    Default oil pressure

    How much oil pressure should i have under power load in my 5.7 indmar, idling it has about 40 under load it goes to about 75-80 is this normal
    2013 LSV
    2006 outback DD sold
    2004 Stingray 180LX sold

    David

  2. #2
    Join Date
    Dec 2006
    Location
    Tuscaloosa, Alabama
    Posts
    736

    Default

    Thats good oil pressure in my book. Mine doesn't run quite that high but wish it would
    Jack Beams
    '05 Outback DD
    325HP EFI Indmar

  3. #3
    Join Date
    Jan 2008
    Location
    Pensacola, FL
    Posts
    1,544

    Default

    That is good oil pressure. I have similar readings on my gauge. However, I don't really trust the actual figures as they may not be exactly correct ( my fuel gauge isn't even close). If the oil pressure ever changes from those reading, I could then worry.
    1997 MasterCraft 205

    2008 Moomba Outback
    1999 MasterCraft Sportstar OB
    1992 MasterCraft 205
    1999 Malibu Response LX
    1987 Marlin Magnum Skier

  4. #4
    Join Date
    Mar 2013
    Location
    I live in Dora Al. Smith lake is my home lake
    Posts
    415

    Default

    Quote Originally Posted by maxpower220 View Post
    That is good oil pressure. I have similar readings on my gauge. However, I don't really trust the actual figures as they may not be exactly correct ( my fuel gauge isn't even close). If the oil pressure ever changes from those reading, I could then worry.
    Thanks for the help
    2013 LSV
    2006 outback DD sold
    2004 Stingray 180LX sold

    David

  5. #5
    Join Date
    Jan 2013
    Location
    North Dakota
    Posts
    156

    Default

    I'm no 'motor head' and was thinking about this the other day too. My boat oil pressure seems to run around 60-70 at speed. The pressure in my 12 yukon runs at a pretty constant 40. Why do boats run higher oil pressures compared to a truck with a comparable engine?
    2013 Mobius LSV
    2004 Centurion T5

  6. #6
    Join Date
    Nov 2010
    Location
    Katy, TX
    Posts
    4,171

    Default oil pressure

    I know they use thicker oil for one, 15w40 is much thicker than 5w20, also your Yukon at speed is probably turning 2,000 rpm vs 3,000 to 3,500 in the boat


    Sent from my iPhone
    David

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

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