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Coolant in Oil

Discussion in '2nd Gen Tundras (2007-2013)' started by Miller_j94, Feb 16, 2020.

  1. Feb 16, 2020 at 3:38 PM
    #1
    Miller_j94

    Miller_j94 [OP] New Member

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    So i have noticed there is a lot of water in my oil and its very milky looking. I did a block test and it came back negative so no Carbon dioxide coming into the radiator. i havent ran a compression test yet but i am hesitant to because i took out one of the coils and noticed oil in the spark plug tubes so gonna replace the valve cover gasket and o rings first before i do that. do you guys know of any other tests i can do to see if im losing no compression but coolant is still getting into the oil through a cracked head gasket or block? I want to be sure it’s a head gasket issue or block issue. One person recommended replacing the oil cooler as coolant may be getting in through there. is there anyway to test that? my truck is 2007 tundra 5.7L and ive been driving it everyday with no overheating issues the only sign it even has an issue is when i check the oil and notice moisture in it. Any help is great
     
    Last edited: Feb 16, 2020
  2. Feb 16, 2020 at 3:57 PM
    #2
    15whtrd

    15whtrd Mr. Blonde

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    Are you making short trips and not getting the truck up to temperature sometimes? That can cause condensation and it will mix with the oil leaving some milky substance on your oil cap.
     
    Zebruaj likes this.
  3. Feb 16, 2020 at 4:00 PM
    #3
    Miller_j94

    Miller_j94 [OP] New Member

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    my daily drive is about 20 min. I think that is long enough and the other day I drove about 45 min to the city. But the moisture is also all over the dipstick, Another reason why I don’t think short trips are a issue.
     
    15whtrd likes this.
  4. Feb 16, 2020 at 4:06 PM
    #4
    JLS in WA

    JLS in WA New Member

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    I’d start with an oil analysis.
     
  5. Feb 16, 2020 at 4:18 PM
    #5
    Miller_j94

    Miller_j94 [OP] New Member

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    Okay I’ll look into that. What’s the typical time until you get results? Also I’m pretty sure it’s coolant in the oil because the reservoir goes low and I’ve filled it up twice. The trouble is figuring out where coolant is getting in from.
     
    Last edited: Feb 16, 2020

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