Required Fluid Types

Discussion in 'KJ General Discussion' started by STINGN, Jun 7, 2010.

  1. STINGN

    STINGN Full Access Member

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    This is for the 3.7l engine

    ENGINE OIL: 5W-30 (5qts)

    ENGINE OIL FILTER: Any filter that works for the 3.7l works fine
    (change every 5,000-7,500 miles)

    TRANSMISSION (Auto): ATF+4
    42RLE (2003+) 4.1qts
    45RFE (2002) 5qts

    T-CASE: ATF+4
    NV242: 3.4 pints
    NV231: 3 pints


    FRONT DIFFERENTIAL: 80W-90, 75W-90, 75W-140
    (change every 12,000-15,000 miles)
    (2.6 pints)

    REAR DIFFERENTIAL: 80W-90, 75W-90, 75W-140
    (change every 12,000-15,000 miles)
    (4.3 pints)

    POWER STEERING: ATF+4

    BREAK FLUID: DOT-3
    (fill to the level)

    ENGINE COOLANT: HOAT (14 quarts)

    what ever else i am missing add it, i think it would be nice to make it a sticky if someone wants to take the time to make one, and if i am totally overlooking it, then just point me to where it is and i will ask a mod to delete this post :)

    http://www.amsoil.com/guides.aspx

    http://www.amsoil.com/mygarage/vehiclelookup.aspx
     
    Last edited by a moderator: Jun 7, 2010
  2. AlexKJ

    AlexKJ Full Access Member

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    2002 and 2003 KJ's have Mopar Steering Fluid instead ATF+4
     
  3. tjkj2002

    tjkj2002 Full Access Member

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    And the recommended drain/refill for the engine oil is 3000 miles.
     
  4. CMCLEAN

    CMCLEAN New Member

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    AlexKJ, can you advise if it's O.K. to substitute the Mopar Steering Fluid with ATF+4 as I doubt if I can obtain it where I am.

    Thanks
     
  5. Nooby

    Nooby Full Access Member

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    when I did my 02 P/S fluid a few months ago I went to the dealership to get mopar P/S fluid, they brought out the Mopar +4 P/S and I asked if the atf+4 was compatible with regular P/S fluid, the guy went away to ask, came back and told be to go to any parts store and buy Plain P/S fluid,

    I went to advance auto and bought a gallon of Pyroil which says it mets chrysler spec 5931 for 16$ to do the flush
    I think valvoline also meets the spec
     
  6. Atrus

    Atrus Full Access Member

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    2007 uses 5W-20
     
  7. 67Customs

    67Customs Full Access Member

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    Only if you drive under schedule B. Otherwise, it is every 6K.
     
  8. AlexKJ

    AlexKJ Full Access Member

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    You can replace Mopar PS with ATF+4 only if you professionaly flush the PS system. You shouldn't mix up those fluids.

    Cheers! :)
     
  9. tjkj2002

    tjkj2002 Full Access Member

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    I have yet seen anyone or anyplace that would let you use schedule "B".
     
  10. 67Customs

    67Customs Full Access Member

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    I really respect what you say in general, but I find that hard to believe. I know lots of people that don't meet the manual "requirements" to put you on the 3K schedule. No off-roading, no daily short trips, no towing, no taxi driving, no dusty conditions, etc..

    And nobody is making you follow a certain schedule over another. If it is in the manaul that you can go 6K, then you can go 6K if you "meet the requirements." Who is making you follow a schedule? Jiffy Lube? Firestone? The dealer? I've never seen them make someone do the shorter schedule. The may suggest it to make more money, but not make

    I don't know why you push the 3K change so much. That is so old school.
     
    Last edited: Sep 28, 2010
  11. incommando

    incommando Banned

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    What is the correct fluid for the NSG370? The NV uses ATF, but the lube for the 6spd is listed as "Mopar Manual Transmission Lubricant or equivlant meeting standard MS-9224." Jeep says it never needs replaced and doesnt list the capacity, either.
     
  12. new jeep owner

    new jeep owner Full Access Member

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    just wondering has anyone substituted full synthetic fluids for oem fluids?

    don't know if it would realy make a difference , but I'm thinking of looking into Royal Purple . just asking :shrug:
     
  13. tjkj2002

    tjkj2002 Full Access Member

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    The only places you could use RP is in the engine and F/R diffs.
     
  14. k99jk99j

    k99jk99j Full Access Member

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    ms 9224 spec is syncromesch fluid

    i have changed mine twice with penzoil syncromesh (i don't believe in lifetime fluids). it states right on the bottle ms9224.

    takes around 2 quarts. i bought 3 just to be safe.

    be sure to wipe the metal off the magnetic drain plug! mike

    p.s. i see you live near cincinnati. i bought my syncromesch at autozone and pepboys in the cincy area.
     
    Last edited: Nov 24, 2010
  15. new jeep owner

    new jeep owner Full Access Member

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    do you think it would make enough of a difference to be worth the cost?
    as far as gas milage and parts wear are concerned?
    I don't want to buy into a bunch of marketing hype .
     
  16. moparman

    moparman Full Access Member

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    I went through this with Dodge Neons. It will work with ATF-4 but will shift better with the synchromesh fluid. I read somewhere else that the synchromesh fluid is the preferred fill and was the factory fill, but when Diamler Chrysler was low on cash and pinching pennies, ATF-4 became the factory fill. When I drained ATF-4 from my 2002 ACR Neon and put the Pennzoil syncromesh fluid in, it made a big difference in shifting action.
     
  17. Jeepkj

    Jeepkj New Member

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    RP makes lots of fluids when i bought the jeep i bought it used and i changed everythign with RP and i noticed a mpg diffrence not much but as far as i see RP has better protection in it and clame to changed every 10K engine oil
     
  18. Xodius

    Xodius Full Access Member

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    I could be wrong but I think you need an additive for the front and rear diffs.
     
  19. 67Customs

    67Customs Full Access Member

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    Rear only and that is if you have the factory limited slip names Trac-lock. If you do, it requires 4oz of a limited slip additive.
     
  20. Okura_hubby

    Okura_hubby Full Access Member

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    I have seen some time ago (years ago) that 5w20 and 5w30 were ok to use in 3.7L. I been using 5W20. Though the cap says 5W30. So am I G2G? Or should I only use 5W30.