2023 Jeep Grand Cherokee — Complete Fluid Type Specifications

As an ASE-certified master technician, I’ve serviced countless Jeep Grand Cherokees. The WL generation (2022-present), which includes the 2023 Jeep Grand Cherokee and the three-row Grand Cherokee L, represents a massive leap in refinement and technology. However, maintaining that refinement requires strict adherence to Stellantis/Mopar fluid specifications.

Using universal fluids or the "wrong color" coolant in these modern drivetrains is a fast track to voided warranties and catastrophic failure. Whether you are dealing with the venerable 3.6L Pentastar V6, the muscular 5.7L Hemi V8, or the advanced 2.0L Turbo 4xe PHEV powertrain, using the exact Mopar-specified fluids is non-negotiable.

Below is the definitive fluid specification and capacity guide for the 2023 Jeep Grand Cherokee, compiled directly from factory service data.

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil (3.6L V6)	0W-20 API SP / Mopar MS-6395	5.0 Quarts (w/ filter)
Engine Oil (5.7L V8)	5W-20 API SP / Mopar MS-6395	7.0 Quarts (w/ filter)
Engine Oil (2.0L 4xe)	5W-30 API SP / Mopar MS-13340	5.0 Quarts (w/ filter)
Engine Coolant	Mopar 10-Year/150k OAT (Purple) / MS-90032	10.4–14.8 Quarts (varies by engine)
Transmission Fluid	Mopar ZF 8 & 9 Speed ATF / MS-90030	~9.0 Quarts (dry fill) / Lifetime
Transfer Case (4WD)	Mopar ATF+4 / MS-9602	1.0–2.0 Quarts (varies by system)
Front Differential	Mopar 75W-85 GL-5 Synthetic / MS-9020	~1.2 Quarts
Rear Differential	Mopar 75W-85 GL-5 Synthetic (add friction modifier for ELSD)	~1.2 - 1.4 Quarts
Brake Fluid	DOT 3 / MS-4319 (or DOT 4 if equipped w/ heavy duty package)	Fill to MAX line
Power Steering	Electric Power Steering (EPS)	N/A (Sealed electrical unit)
Washer Fluid	Standard all-season washer solvent	Up to 1 Gallon

(Note: Always verify capacities using the dipstick or fill-plug overflow method during the final check, as thermal expansion and residual fluid will affect drain-and-fill amounts.)

Engine Oil

Modern variable valve timing (VVT) systems and MultiAir technology are incredibly sensitive to oil viscosity and shear stability.

• 3.6L Pentastar V6: Requires 0W-20 viscosity engine oil meeting API SP and Mopar MS-6395 standards. The capacity is exactly 5.0 quarts with a filter change.
• 5.7L Hemi V8: Requires 5W-20 viscosity oil meeting API SP and Mopar MS-6395. Capacity is 7.0 quarts. Using thicker oil in the Hemi can cause issues with the Multi-Displacement System (MDS) cylinder deactivation lifters.
• 2.0L Turbo 4xe (PHEV): This high-strung turbocharged engine demands 5W-30 full synthetic meeting Mopar MS-13340.

Tech Tip: The oil change interval should never exceed 10,000 miles or 12 months, but I strongly advise dropping that to 5,000-7,000 miles if you frequently tow, idle extensively, or drive in stop-and-go traffic.

Engine Coolant

The 2023 Grand Cherokee uses Mopar 10-Year/150,000 Mile Formula OAT (Organic Additive Technology) coolant, spec MS-90032. It is dyed purple from the factory.

Critical Pitfall: Do NOT mix OAT with older HOAT (Hybrid Organic Additive Technology, typically orange or pink) coolants, and stay away from generic "all makes, all models" green or yellow coolants. Mixing OAT and HOAT leads to a chemical reaction that creates a thick, sludgy gel. This gel will rapidly clog your heater core and radiator, leading to massive overheating repairs. If you are topping off, use only 50/50 premixed MS-90032.

Transmission Fluid

Jeep uses the fantastic ZF 8-speed automatic transmission (specifically the 850RE or ZF 8HP70/75 depending on the engine) in the 2023 Grand Cherokee. This transmission requires Mopar ZF 8 & 9 Speed ATF (MS-90030).

Stellantis considers this a "lifetime" fluid under normal driving conditions. However, from a master tech's perspective, "lifetime" usually means the lifetime of the warranty. If you do any serious off-roading, towing, or aggressive driving, you should perform a pan/filter replacement and fluid service around 60,000 miles. Never use ATF+4, Dexron VI, or Mercon LV in this transmission. The friction coefficient of the ZF-specific fluid is heavily engineered for the clutch packs in this exact gearbox.

Transfer Case Fluid

For 4x4 models, the transfer case fluid depends on the system equipped (Quadra-Trac I, Quadra-Trac II, or Quadra-Drive II). Generally, Jeep specifies Mopar ATF+4 (MS-9602) for the active transfer cases. Intervals are critical here; if you drive through deep water or mud, check the fluid immediately. Otherwise, a 30,000 to 60,000-mile drain-and-fill is standard best practice to prevent chain stretch and clutch pack wear.

Front and Rear Differential Gear Oil

Both the front and rear axles on the 2023 Grand Cherokee call for 75W-85 GL-5 Synthetic Gear Lubricant.

If your Grand Cherokee is equipped with Quadra-Drive II, the rear axle features an Electronic Limited Slip Differential (ELSD). In this case, you must add Mopar Limited Slip Additive (Friction Modifier) to the gear oil to prevent clutch chatter during tight turns, or purchase a premium synthetic 75W-85 that explicitly states it comes pre-mixed with the correct amount of friction modifier for ELSDs.

Brake Fluid

The braking system requires DOT 3 brake fluid meeting SAE J1703 or Mopar MS-4319 specifications. Some models equipped with heavy-duty towing packages might call for DOT 4 (verify on your master cylinder cap).

Brake fluid is hygroscopic (it absorbs moisture from the air). Even in a sealed system, you should flush the brake fluid every 2 to 3 years. Moisture in the fluid drops the boiling point drastically, which can lead to brake fade when descending steep grades or towing.

Power Steering Fluid

The 2023 Jeep Grand Cherokee utilizes an Electric Power Steering (EPS) rack. Because it is an electromechanical unit rather than a hydraulic pump, there is no power steering fluid to check, top off, or replace.

Washer Fluid

Any high-quality, all-season windshield washer solvent will do. If you live in a colder climate, ensure you are using a winter-blend fluid rated for -20°F or lower so the reservoir and lines do not freeze and crack.

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Maintaining a modern vehicle like the 2023 Jeep Grand Cherokee is all about precision. Stick to these factory specifications, respect the intervals, and never cut corners with universal fluids.

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