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  1. 5 tire rotation discussion

    Thanks for sharing this diagram. It aligns with Zachanadandy's suggestion: "If I had a rear LSD I'd have to make sure the spare ended up on the front...". Also see Zachanadandy's comment in post #102. This five-tire rotation method is suitable for vehicles with Trac-Lok limited slip (LS, or...
  2. 5 tire rotation discussion

    For Trac-Lok / LSD, would it make sense to switch the direction of each arrow? Also see reply #30 in this thread: "If I had a rear LSD I'd have to make sure the spare ended up on the front...".
  3. How can I say this without sounding like a total NOOB? Cooling system Question

    For OAT-formulated coolant that complies with MS.90032 or MS-12106: Please see my post, PEAK Antifreeze + Coolant Equivalent to OEM Original, for a review of PEAK, Prestone, and XEREX
  4. 2023 Gladiator 3.6 Coolant Confusion

    For OAT-formulated coolant that complies with MS.90032 or MS-12106: Please see my post, PEAK Antifreeze + Coolant Equivalent to OEM Original, for a review of PEAK, Prestone, and XEREX
  5. antifreeze /Coolent

    Coolant color is no longer relevant . What matters is that the coolant is: OAT-formulated and complies with MS.90032 or MS-12106 Please see my post, PEAK Antifreeze + Coolant Equivalent to OEM Original, for a review of PEAK, Prestone, and XEREX - OAT-compatible will work, but it doesn't meet...
  6. 5k mile oil changes in spite of oil life indicator still showing plenty left

    My answer is E) All of the above. Requirements from the owner's manual: 1. Change oil and filter 2. As indicated by Oil Change Indicator System (do not ignore; it can illuminate sooner than MAX mileage); can trigger as early as 3,500 miles; if triggered, change oil & filter ASAP, within next...
  7. Oil Change time rapidly approaching. What to do?

    As the OP for the thread on PEAK purple coolant (and the competition), I find it interesting that the results of the poll are heavily in favor of orange. I suspect that the poll result has to do with the color of the factory fill. Before I wrote that post, I read that the coolant color debate...
  8. If its lifetime fluid why is this needed?

    Patent title: Transmission fluid change using internal pump Patent number: 12209651 Patent search: https://ppubs.uspto.gov/pubwebapp/static/pages/ppubsbasic.html Verification: This is the correct patent; to verify, see the top online search result for...
  9. Royal Purple for transfer case

    I don't know the history on Royal Purple MAX ATF, but here's what I found when I looked up this info for my post on key info. SYNCHROMAX - Match to Gladiator transfer case on RP product finder - No match to MS-9602 or MOPAR 68218057AC on SYNCHROMAX PDS - ATF+4 is mentioned for "Viper Trans...
  10. References to ZF-Approved ATF Equivalents for 850RE Automatic Transmission

    Agreed. To assist with finding the right stuff, I have added a section called "Other options" to the original post above. Each aftermarket option that is listed in my post on prices (and not ZF-approved) is a part-to-part, "claimed equivalent".
  11. References to ZF-Approved ATF Equivalents for 850RE Automatic Transmission

    This post contains: Four documents related to ZF-approved ATF equivalents for the ZF 8HP50 / Chrysler TorqueFlite 850RE automatic transmission Advice on ATF for the automatic transmission (and manual transmission) from the Jeep Gladiator owner's manual Key considerations on ATF for the...
  12. PEAK Antifreeze + Coolant Equivalent to OEM Original

    I bought my Gladiator Sport in Sep 2019. Daily driver, 48K mi, and original purple coolant. Never taken it off-road, but that's going to change. I know that ZEREX is also MS-compliant, but I am skeptical of their parent company's products because, in some cases, they leave compliance...
  13. Engine coolant/ antifreeze

    Coolant color is no longer relevant . What matters is that the coolant is: OAT-formulated and complies with MS.90032 or MS-12106 Please see my post, PEAK Antifreeze + Coolant Equivalent to OEM Original, for a review of PEAK, Prestone, and XEREX - OAT-compatible will work, but it doesn't...
  14. PEAK Antifreeze + Coolant Equivalent to OEM Original

    PEAK coolant = MOPAR properties and same warranty as Prestone at ZEREX price - In June 2026, I added the link for ZEREX G30 50/50, above, because its sale price has remained below the $20 price point; meanwhile, PEAK Purple 50/50 has migrated above the $20 price point - Coolant color is no...
  15. Key lock gas cap

    Cheapest MOPAR option for a locking gas cap: MOPAR 5278655AB - Includes 2 copies of flat key - Better-than-nothing theft deterrent - Slightly less convenient than other upgraded MOPAR locking fuel cap, but it's a perfect fit
  16. Has anybody renewed their Jeep wave Membership ?

    Here's the minimum value of bring-your-own-oil service at the dealer. Dealer's choice motor oil from Walmart and oil filter from dealer parts department: $57.39 = (($26.98+$7.56)*(100%+8.25%)+$20.00), including sales tax of 8.25% and $20 for "labor-only" oil change Copy & paste the calc into a...
  17. “Death wobble”

    I have updated my post with the solution for a stock Gladiator with OEM-size tires and no mods. https://www.jeepgladiatorforum.com/forum/threads/death-wobble-dw-death-wobble-dw-death-wobble-shimmy-wander-drift-bump-steer.68302/page-9#post-1438712 My post starts by suggesting a review of the...
  18. “Death wobble”

    Here is the most important part, from my reply to the thread below, for death wobble on what I assume is a stock vehicle with no mods: Tell the service advisor that the steering "shakes" and "feels loose"...
  19. Key Info on Fluids & Filters for Jeep Gladiator

    Please add a link to support the claim in the previous reply (post #7). The topic of RP gear oil conflict can lead to a lot of reading but no pot of gold (no conclusive proof) at the end. In a Google search, the thread below was the top search result (from this forum) and concluded that the...




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