2025 Jeep Wrangler Fluid Specs: The Complete Reference Guide

As an ASE-certified master technician, I have seen firsthand what happens when the wrong fluids are poured into a modern 4x4. The 2025 Jeep Wrangler (JL generation) is a highly capable, technologically advanced machine that demands strict adherence to factory specifications. Whether you are rocking the 2.0L turbocharged inline-four, the legendary 3.6L Pentastar V6, the 4xe plug-in hybrid, or the fire-breathing 6.4L HEMI V8 in the Rubicon 392, using the correct fluids is non-negotiable for longevity and performance.

Below is your complete, authoritative guide to every factory-spec fluid for the 2025 Jeep Wrangler. Always verify exact capacities and specs in your owner's manual or OEM service information, as slight variations exist between trim levels and optional packages.

Quick reference

Fluid	Type/Spec	Capacity
Engine Oil (2.0L Turbo & 4xe)	5W-30 API SP / ILSAC GF-6A (Mopar MS-13340)	5.0 qts (with filter)
Engine Oil (3.6L V6)	0W-20 API SP / ILSAC GF-6A (Mopar MS-6395)	5.0 qts (with filter)
Engine Oil (6.4L V8 392)	0W-40 Full Synthetic (Mopar MS-12633)	7.0 qts (with filter)
Engine Coolant	Mopar 10-Year/150k-Mile OAT (Purple) (MS-90032)	10.3 – 16.6 qts (varies by engine)
Automatic Transmission	Mopar ZF 8 & 9 Speed ATF	~5.2 qts (pan drop) / 9.0 qts dry
Manual Transmission	Mopar ATF+4 (MS-9602)	~2.0 qts
Transfer Case	Mopar ATF+4 (MS-9602)	1.8 – 2.0 qts
Front Differential	75W-85 GL-5 Gear Oil (Mopar)	1.0 – 1.2 qts
Rear Differential	75W-85 GL-5 (Add friction modifier for LSD)	1.4 – 1.5 qts
Brake Fluid	Mopar DOT 3 (MS-4319)	Fill to MAX line
Power Steering Fluid	Mopar Electric Steering Pump Fluid (MS-11655)	Fill to MAX line
Windshield Washer	Standard washer fluid	~1.0 gallon

(Note: The 3.0L EcoDiesel was discontinued prior to the 2025 model year, so Diesel Exhaust Fluid/DEF is no longer applicable for new models).

Engine Oil

Modern Jeep engines utilize variable valve timing (VVT) and precise hydraulic lifters that rely heavily on exact oil viscosity and additive packages.

• 2.0L Turbo & 4xe PHEV: Require a 5W-30 full synthetic meeting API SP and Mopar MS-13340. The turbocharged engine runs hot, and API SP prevents Low-Speed Pre-Ignition (LSPI), a condition that can severely damage turbo engines.
• 3.6L Pentastar V6: Uses a thinner 0W-20 API SP meeting Mopar MS-6395.
• 6.4L HEMI V8: Demands 0W-40 full synthetic meeting Mopar MS-12633. Pennzoil Ultra Platinum is the factory fill and highly recommended.

Intervals & Pitfalls: Follow the Oil Life Monitor on the dash, but never exceed 10,000 miles or 12 months. For off-road enthusiasts or those towing, a 5,000-mile interval is much safer. Never use an API SN oil in the 2.0L turbo, as it lacks adequate LSPI protection.

Engine Coolant

The 2025 Wrangler uses Mopar 10-Year/150,000-Mile Formula OAT (Organic Additive Technology), which is dyed purple (Mopar MS-90032).

Intervals & Pitfalls: Coolant should be inspected at 100,000 miles and replaced at 150,000 miles or 10 years, whichever comes first. Never mix OAT (Purple) with HOAT (Orange/Pink). Mixing these two distinct chemistries will cause the coolant to gel, drastically reducing cooling capacity and plugging the heater core and radiator. If you must top off and don't have MS-90032 on hand, use distilled water, not a "universal" green coolant.

Transmission Fluid

The 2025 Wrangler comes with either an 8-speed automatic (ZF-sourced) or a 6-speed manual.

• Automatic (850RE / 8HP75): Requires specific Mopar ZF 8 & 9 Speed ATF.
• Manual (Aisin AL6): Surprisingly to some, the factory spec for the manual transmission is Mopar ATF+4 (MS-9602).

Intervals & Pitfalls: Jeep considers the 8-speed automatic "fill for life" under normal driving conditions. However, as a master tech, I advise a pan drop, filter replacement, and fluid fill every 60,000 miles for automatic transmissions, especially if you wheel the Jeep hard, run oversized tires, or tow. Never use "universal" ATF in the ZF 8-speed; it requires the exact frictional properties of the ZF fluid to prevent harsh shifting and clutch pack wear.

Transfer Case

Whether you have the Command-Trac or Rock-Trac transfer case, the required fluid is Mopar ATF+4 (MS-9602).

Intervals & Pitfalls: Replace the transfer case fluid every 60,000 miles, or every 30,000 miles if used frequently in off-road, water-fording, or fleet applications. It's a quick drain-and-fill procedure. Always remove the fill plug before the drain plug to ensure you can refill the case after draining it.

Front and Rear Differentials

Jeep Wranglers feature solid axles (Dana 30, 35, 44, or full-float 44 depending on trim). The factory fill is 75W-85 GL-5 gear oil. However, if you are towing, running a heavily up-armored rig, or operating primarily in extreme heat/off-road conditions, stepping up to a 75W-140 full synthetic GL-5 is highly recommended by most driveline specialists.

Intervals & Pitfalls: Change differential fluid every 40,000 miles (or 20,000 for severe duty/frequent water fording). Crucial Note: If your rear differential is equipped with the Trac-Lok limited-slip differential (LSD), you must add a Mopar limited-slip friction modifier (MS-10111) to prevent clutch chatter. Rubicon models with Tru-Lok electronic lockers do not require the friction modifier, as they use open differentials when unlocked.

Brake Fluid

The braking system utilizes Mopar DOT 3 brake fluid (MS-4319). Some heavy-duty applications can use DOT 4 (MS-90039), but verify your master cylinder cap.

Intervals & Pitfalls: Brake fluid is hygroscopic (it absorbs moisture from the air). Replace and bleed the brake fluid every 2 years or 24,000 miles. Never substitute DOT 5 (silicone-based) fluid, as it is incompatible with the ABS/ESC system and will destroy the seals.

Power Steering Fluid

The 2025 Wrangler utilizes an Electro-Hydraulic Power Steering (EHPS) pump. This requires a very specific Mopar Electric Steering Pump Fluid meeting MS-11655.

Intervals & Pitfalls: Inspect the fluid level regularly. Do NOT use standard ATF+4 or conventional power steering fluid in the EHPS system, as it will damage the electric pump's internal seals and lead to expensive rack/pump failures.

Washer Fluid

Any standard windshield washer fluid is acceptable. If you live in a cold climate, ensure you use a winter-blend fluid rated for sub-zero temperatures to prevent the reservoir and lines from freezing and cracking.

Maintaining your 2025 Jeep Wrangler with exact OEM-specified fluids is the single best investment you can make in its long-term reliability. Whether you're conquering Moab or cruising the highway, keeping the lifeblood of your Jeep clean and in-spec ensures you'll get home safely.

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