Chrysler MS-6395/oil specification

Chrysler MS-6395/oil specification

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  1. #1
    JK Freak ResQGrnRubi's Avatar
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    Jun 2008
    Greenville, VA

    Default Chrysler MS-6395/oil specification

    Chrysler material standard 6395, where can I read this myself.
    The manual for 2008 JK stats it's best to use oil that meets this standard, I've also seen oils that labeled themselves as meeting Chrysler MS-6395H and 6395M, what do the letters mean, and would an oil meeting/exceeding 6395M be just as acceptable as an oil that should meet standard 6395?

  2. #2
    JK Enthusiast afoulk's Avatar
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    Jul 2008
    Lebanon, PA


    I'd like to know this too.
    08 Unlimited X "Jeep Green"
    auto, limited slip
    Aerotech Interceptor
    Skidrow EVAP skid
    Powerstroke tranny cooler
    Hushpower muffler
    Teraflex leveling kit
    AFE Pro7 filter

  3. #3
    JK Freak GreytSilly's Avatar
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    Feb 2008
    Rome, NY


    I found a 6395Q spec rating too. I think it was on Pennzoil synthetic. Maybe the letters are just updates to the spec, like the API Service grade has been upgraded by sequential letters in their duty rating. I'm just guessing here though.
    '07 JK 2 Door X Six Speed Soft Top Black Over Black
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  4. #4
    JK Enthusiast ColinW's Avatar
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    Jan 2008
    Columbus, GA


    From "Only use API Certified engine oils that meet the requirements of Chrysler's Material Standard MS-6395. MS-6395 contains requirements, not addressed by API Certification, that provide additional protection for Chrysler Group engines. All Chrysler Group gasoline engines, irrespective of model year, should be serviced with API Certified engine oils meeting MS-6395. Chrysler Group Engines are developed, certified and filled with engine oil of the designated viscosity grade, meeting MS-6395, and should be serviced with the correct viscosity grade engine oil..."

    Hope this helps.

    EDIT: Here's the article from which the above excerpt came:

    ["]enginebuildermag. com/Content/Site302/SpecialIssue/02_01_2008/3555Chrysler1pd_00000005691.pdf]
    Last edited by ColinW; 07-19-2008 at 10:29 AM.
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