g2020
Well-Known Member
- Thread starter
- #1
This short list contains key info on OEM fluids & filters. Also handy for checking fluid equivalence.
Specifications of Fluids & Filters for Jeep Gladiator
MOPAR Part Numbers, MS-Numbers, Industry Standards, and Grades
>>>>> One-pager on Manufacturer Specs above this line <<<<<
>>> Reminders, Exceptions, and References below this line <<<
***If you like, join this forum***
Important Reminders
Exceptions to Owner's Manual
or What the Owner's Manual Doesn't Tell You
Other Posts by the Same Gladiator Owner
Attachments
Specifications of Fluids & Filters for Jeep Gladiator
MOPAR Part Numbers, MS-Numbers, Industry Standards, and Grades
1. Brake fluid: 04318080AD, MS.4574, DOT 3, SAE J1703; if DOT 3 J1703 is not available, DOT 4, J1703/J1704 is acceptable
2. Cabin air filter: 68535621AA (replaces 68301863AA on 2018-2022 JL and JT); can vary by model year
3. Engine air filter: 68257030AA
4. Front differential fluid: 68378949AB, MS-A0450, synthetic, API GL-5, SAE 75W-85; a name-brand aftermarket fluid with friction modifier will not harm the differential
- SAE 75W-85 provides better fuel economy, but SAE 75W-140 offers greater durability; as a Dana Rebuild Specification, SAE 75W-140 may be used for both axles
5. Motor oil: MS-6395, full synthetic, API Certified, SAE 0W-20
6. Oil filter: 68191349AC; designed for use with full synthetic motor oil
7. Power steering fluid: 68088485AB, MS-11655, synthetic
8. Radiator fluid: 68163849AC (prediluted) or 68163848AC (concentrate), MS-12106 (prediluted) or MS.90032 (concentrate), OAT-formulated, ASTM D3306 Type 3 (50/50 prediluted) or Type 1 (concentrate), Antifreeze / Coolant
- Type 1 (100% concentrate) and Type 3 (50/50 prediluted) refer to different concentrations of the same base engine coolant
9. Rear differential fluid:
SAE 75W-85: 68378949AB, MS-A0450, synthetic, API GL-5 (for driving under normal conditions)
- SAE 75W-85 provides better fuel economy, but SAE 75W-140 offers greater durability; as a Dana Rebuild Specification, SAE 75W-140 may be used for both axles
SAE 75W-140: 68218657AB, MS-8985, synthetic, API GL-5 (for trailer towing, heavy loads, or Sales Code DRZ); this grade may be required for both axles on modified vehicles
Friction modifier: 04318060AD, MS.10111, synthetic, Friction Modifier Axle Additive required for Trac-Lok limited slip (LS) anti-spin rear differential
10. Transfer case fluid: 68218057AC, MS-9602, synthetic, ATF+4 (same as manual transmission)
11. Transmission fluid:
Automatic transmission: 68218925AB, this MOPAR fluid is a ZF-approved (see doc #1 in ATF Equivalents) ATF equivalent to ZF LifeguardFluid 9 (ZF No. AA01.500.001), synthetic
Manual transmission: 68218057AC, MS-9602, synthetic, ATF+4 (same as transfer case)
12. Transmission oil filter: 68417054AB (for automatic transmission)
- For MOPAR part description and size, see section 3 in my post Links to Prices
- For fluid capacity, service interval, and a section on fluid & filter uniformity, see my post Fluid and Filter Lineup or the internal dealer spec sheet
- Update: For fluid in front & rear differentials, mileage service intervals are A) replace before 30,000 mi for first differential service (regardless of normal or severe use), B) replace every 60,000 mi for Normal Driving, C) replace every 40,000 mi for Severe Duty, and D) inspect every 20,000 mi
- Front differential fluid (simple) and rear differential fluid (more complex) are intentionally listed separately
- My personal cheat sheet and a list of my product preferences are attached below
- Update: See "Update" above
- Out of scope: Fuel, fuel filter, windshield washer fluid, A/C refrigerant oil, and diesel-only fluids & filters
>>>>> One-pager on Manufacturer Specs above this line <<<<<
>>> Reminders, Exceptions, and References below this line <<<
***If you like, join this forum***
Important Reminders
- #1 key takeaway: In general, the service interval for severe service or trailer towing is 40% to 50% of the service interval for normal driving
- Also see "What is Severe Duty?" at the beginning of Fluid and Filter Lineup
- This guidance applies to all fluids & filters
- For motor oil, the severe duty, mileage service interval for off-road use is 40% of the interval for normal driving, or every 4,000 miles (or 1 year, whichever comes first)
- Requirement for any type of vehicle use: Change oil and filter at every oil change interval as indicated by Oil Change Indicator System; also see Motor Oil & Oil Filter Service Intervals
- For vehicles with more than 75,000 miles, see my post on High Mileage Motor Oil
- ATF for automatic transmission: Use only MOPAR 68218925AB or ZF-approved equivalent; there is no MS-number, but rather equivalence to a ZF-branded lubricant to which a ZF approval number has been assigned: A lubricant with this type of equivalence (including MOPAR 68218925AB) is known as a ZF-approved equivalent
- Under normal driving conditions, ZF recommends changing the ATF in the ZF 8HP50 / Chrysler 850RE automatic transmission every 93,000 miles (see doc #2, ZF LifeguardFluid 9 PDS, in my post on ATF Equivalents); the 850RE is manufactured by Chrysler under license from ZF
- Under operating conditions with high temperatures and heavy loads, or unknown past vehicle use, ZF recommends changing the ATF at shorter intervals
- High operating temperatures can be caused by frequent trips at high speeds, frequent trailer towing, hot weather (above 90°F), or "sporty driving" (see doc #4, page 1, in my post on ATF Equivalents); I interpret "sporty driving" to mean off-road vehicle use, aggressive driving, or local driving with frequent starts & stops
- Using the 40% to 50% service interval rule of thumb for severe service & trailer towing, the shorter interval range (expressed as 45% +/- 5%) for changing ATF in the automatic transmission is 42,000 miles +/- 5,000 miles
- For a review of service interval advice from the Jeep Gladiator owner's manual, see "Advice from the Jeep Gladiator Owner's Manual" in ATF Equivalents
- For guidance on ZF-approved equivalents and other options, see "Other options" at the beginning of my post on ATF Equivalents
- Brake fluid: Use DOT 3 J1703 (recommended) or DOT 4 J1703/J1704 (acceptable); MS.4574
- To the best of my knowledge, MOPAR 04318080AD is the only brake fluid that has MS.4574 printed on the label
- As a matter of course, my local dealer used DOT 4 J1703/J1704 (MOPAR 04549625AF, MS-9971, part number since superseded) for a brake fluid service in 2023
- MOPAR warranty limitation: If a new MOPAR part (such as an oil filter) fails, damage to other parts is covered if the covered part is installed in a Gladiator by an FCA dealer; however, the Mopar Basic Limited Warranty does not cover damage to other parts for DIY installation (also see attachment below)
- Radiator fluid: Use antifreeze / coolant formulated with OAT (Organic Acid Technology); MS-12106 or MS.90032
- Sales Code DRZ: Use SAE 75W-140 in rear differential; MS-8985
- AMSOIL Severe Gear and RED LINE gear oil comply with all three MS-numbers for differential fluids (see section 1.3 in my post Links to Prices)
- Trac-Lok limited slip (LS) Anti-Spin Rear Differential: A limited-slip (LS) friction modifier axle additive is required for Trac-Lok; MS.10111
- Trailer towing: Use SAE 75W-140 in all types of rear differentials for trailer towing; MS-8985 (also, for Trac-Lok, MS.10111)
- AMSOIL Severe Gear and RED LINE gear oil comply with all three MS-numbers for differential fluids (see section 1.3 in my post Links to Prices)
- Whenever possible, use a fluid that has the MS-number stated on the label or on the manufacturer's website
- There are five key sources of info on (MOPAR) fluids & filters for the Gladiator:
1. Your owner's manual (about 10 pages total, plus the index)...yes, only 10 pages
- In 2020 Gladiator owner's manual, 2nd edition: pp. 196-200, 206-208, 232, 234
3. MOPAR VEHICLE LUBRICANT & CHEMICAL CATALOG (published in 2024; see link in References section below)
4. Torque specs
5. Service & repair manual (these links possibly lead to the same documents; I didn't check)
- Main source of important reminders in this section: Fluid and Filter Lineup for 2020 Jeep Gladiator Sport, listed as the first post in my collection of posts on fluids & filters for the Gladiator, Oils, Fluids & Filters -- Lists & Guides For Jeep Gladiator
Exceptions to Owner's Manual
or What the Owner's Manual Doesn't Tell You
- ATF for automatic transmission: Jeep officially states that the factory fill is a "lifetime fluid"; ZF recommends changing this fluid every 93,000 miles under normal driving conditions (see ZF LifeguardFluid 9 PDS)
- Brake fluid: DOT 3, SAE J1703 is recommended; DOT 4, SAE J1703/J1704 is acceptable (see last page of internal dealer spec sheet)
- Differential fluid: With some important exceptions, SAE 75W-85 is recommended for better fuel economy; as the thicker grade, SAE 75W-140 offers greater durability; also, SAE 75W-140 is a Dana Rebuild Specification
- Radiator fluid: Material standard MS.90032 (concentrate) is specified; MS-12106 (prediluted) is for the 50/50 concentration of the same base engine coolant; these two material standards are equivalent (see link to MOPAR VEHICLE LUBRICANT & CHEMICAL CATALOG in References section below)
2020 Jeep Gladiator owner's manual, second edition
p. 196
1. Severe Duty All Models | "Change engine oil at 4,000 miles...if...operated in a dusty and off-road environment"
pp. 196-197
2. "required maintenance....At every oil change interval as indicated by Oil Change Indicator System: Change oil and filter"
p. 199
3. "transmission fluid...during hot weather, above 90°F"
p. 232
4. Engine Coolant | "recommend...formula OAT (Organic [Acid] Technology)...MS.90032"
5. Engine Oil - 3.6L Engine | "recommend...API Certified SAE 0W-20...MS-6395"
- Inferred: An API-certified and -licensed motor oil is eligible to display the API certification starburst mark, "American Petroleum Institute Certified for Gasoline Engines"
- API-Certified for Gasoline Engines (for a Jeep Gladiator with a gasoline engine) = API SN or higher = American Petroleum Institute Service category SN or higher
List of FCA-licensed brands of ATF+4 (for transfer case and MANUAL transmission) published by CQA (Center for Quality Assurance):
Clicking on the following link will open a large .pdf version of the MOPAR VEHICLE LUBRICANT & CHEMICAL CATALOG (2024):
https://www.dealers-mopar.com/resources/pdf/chemical/chemical-catalog.pdf (p. 15, COOLANT, OAT FAMILY)
Note on material standards for coolant: Material standard MS.90032 is listed in the owner's manual; in the chemical catalog, MOPAR lists MS-12106 for 50/50 prediluted, and both MS-12106 and MS.90032 for concentrate; the material standard for concentrate is MS.90032; for concentrate, MS-12106 is (also) listed to make it clear that concentrate, after 1:1 dilution with deionized & distilled water, is the same as 50/50 prediluted; each of these two MS-numbers refers to a different concentration of the same base engine coolant; also see attachment below
-2020-2023-jt-gladiator-torque-values-all-of-them-in-one-place.67915/The following link is also listed in the next section:
Advice on motor oil labeling from PQIA (Petroleum Quality Institute of America):
https://www.sae.org/ (SAE International)
Note: In case of conflict, guidance in this post supersedes guidance in my other posts
Other Posts by the Same Gladiator Owner
(Formerly: Fluid & Filter Series of Posts on Jeep Gladiator)
This post is a collection of links to my articles on fluids & filters for a Jeep Gladiator
Attachments
1. MOPAR warranty limitation: The following excerpt is from page 3 of either Mopar Basic Limited Warranty (1911_M_Basic_Limited_Warranty_Final.pdf) or Warranty - Complete Mopar Parts & Accessories Limited Warranty Statement (Mopar_All_Warranties_Complete_Statement-Final.pdf), as of April 2025:
Summary of this excerpt:
"If a Mopar® Part...is installed...by an...FCA US LLC dealer, and...it causes other parts to be damaged or to fail, those other parts will be repaired or replaced.... Except where prohibited by law, this warranty is the sole and exclusive remedy."
2. OAT-formulated coolant specifications from MOPAR VEHICLE LUBRICANT & CHEMICAL CATALOG (2024), p. 15, COOLANT, OAT FAMILY
- Part numbers have been superseded by 68163849AC (prediluted) and 68163848AC (concentrate)
3. Personal Cheat Sheet - Jeep Gladiator Manufacturer Specifications.txt (uploaded 2025-05-06)
- Update: For fluid in front & rear differentials, mileage service intervals are A) replace before 30,000 mi for first differential service (regardless of normal or severe use), B) replace every 60,000 mi for Normal Driving, C) replace every 40,000 mi for Severe Duty, and D) inspect every 20,000 mi
4. Product Preferences - Fluids & Filters for Jeep Gladiator.txt (uploaded 2025-05-06)
- Update: See "Update" above
Sponsored
Last edited:
