2019 Jeep Wrangler Fluid Type Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil (3.6L)	5W-20, API SN Plus or later, Mopar MS-6395	6 quarts (5.7 liters)
Engine Oil (2.0L)	5W-30, API SN Plus or later, Mopar MS-6395	5 quarts (4.7 liters)
Engine Coolant	OAT (Organic Additive Technology), Mopar MS-90032 (Purple)	10.5-13.5 quarts (9.9-12.8 liters) (approx.)
Automatic Trans.	Mopar ZF 8-Speed ATF (ZF LifeguardFluid 8)	~5-9 quarts (4.7-8.5 liters) (service dependent)
Manual Trans.	Mopar C635 MTF (68092632AD)	Approx. 2.75 Quarts (2.6 Liters)
Transfer Case	Mopar MP 241/242/245/246/249/271/300/302/1225/1228/1229/1230 NV245/NV247/NV249/NV249-HD, MS-9602	1.3-3.6 pints (0.6-1.7 liters) (verify in owner's manual)
Front Diff. (Dana M186)	SAE 75W-90, API GL-5, Mopar MS-90032, Optional LSD additive for Trac-Lok	1.8 pints (0.85 liters)
Front Diff. (Dana M210)	SAE 75W-85, API GL-5, Mopar MS-90032, Optional LSD additive for Trac-Lok	2.1 pints (1.0 liters)
Rear Diff. (Dana M200)	SAE 75W-90, API GL-5, Mopar MS-90032, Optional LSD additive for Trac-Lok	2.5 pints (1.2 liters)
Rear Diff. (Dana M220)	SAE 75W-140, API GL-5, Mopar MS-90032, Optional LSD additive for Trac-Lok	4.8 pints (2.3 liters)
Brake Fluid	DOT 3 or DOT 4	As needed
Power Steering	N/A (Electric Power Steering)	N/A
Washer Fluid	Mopar Windshield Washer Concentrate or equivalent	As needed

Engine Oil

The 2019 Jeep Wrangler offers two engine options, each with specific oil requirements. It's crucial to use the correct viscosity and specification to ensure optimal engine performance and longevity.

3.6L Pentastar V6 Engine

• Type/Spec: SAE 5W-20, API SN Plus or later, meeting Mopar Material Standard MS-6395. Using oil that meets or exceeds the API SN Plus standard is important for protection against low-speed pre-ignition (LSPI), a common issue in modern turbocharged and direct-injected engines (though the 3.6L is naturally aspirated, this spec ensures broader compatibility and protection).
• Capacity: Approximately 6 quarts (5.7 liters) with a filter change.
• Intervals: The oil change interval is typically determined by the Oil Change Indicator System, but generally, it's recommended every 10,000 miles (16,000 km) or 12 months, whichever comes first, under normal driving conditions. More frequent changes may be necessary for severe duty (e.g., towing, off-roading, extreme temperatures, dusty conditions).
• Common Pitfalls: Never use an oil not meeting the MS-6395 standard. Using a different viscosity than 5W-20 can negatively impact fuel economy and engine wear. Always check the oil level on a flat surface after the engine has been off for a few minutes to allow oil to drain back to the pan.

2.0L Turbocharged I4 Engine

• Type/Spec: SAE 5W-30, API SN Plus or later, meeting Mopar Material Standard MS-6395. The SN Plus specification is critical for this turbocharged engine to prevent LSPI.
• Capacity: Approximately 5 quarts (4.7 liters) with a filter change.
• Intervals: Similar to the 3.6L engine, follow the Oil Change Indicator System, but typically around 10,000 miles (16,000 km) or 12 months for normal driving. Severe duty requires more frequent changes.
• Common Pitfalls: As with the 3.6L, using oil not meeting MS-6395 is not recommended. The correct 5W-30 viscosity is paramount for the turbocharger's longevity and efficient operation. Always confirm the oil level to avoid over or underfilling.

Engine Coolant

• Type/Spec: The 2019 Jeep Wrangler uses an Organic Additive Technology (OAT) coolant, specifically Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula, part number 68048953AB (or equivalent), which meets Mopar MS-90032. This coolant is purple/pink in color. It is pre-diluted to a 50/50 mix for most climates.
• Capacity: The approximate capacity for the cooling system is between 10.5 to 13.5 quarts (9.9 to 12.8 liters), depending on engine and specific configuration.
• Intervals: The extended-life OAT coolant is designed for a long service life of 10 years or 150,000 miles (240,000 km), whichever comes first. However, it's good practice to check the coolant level and condition periodically.
• Common Pitfalls: Never mix OAT coolant with other coolant types like HOAT (Hybrid Organic Additive Technology) or traditional green IAT (Inorganic Additive Technology) coolants. Mixing different coolant types can lead to chemical incompatibility, gelling, precipitation, and severe damage to the cooling system and engine. Always use distilled water if you are mixing your own concentrate, although a pre-mixed solution is usually the safest option. Ensure the system is properly bled of air after any coolant work.

Transmission Fluid

Automatic Transmission (8-Speed ZF 8HP50/8HP75)

• Type/Spec: The 8-speed automatic transmission requires specific Mopar ZF 8-Speed ATF (ZF LifeguardFluid 8) or an equivalent fluid that meets the ZF LifeguardFluid 8 specifications. Do not use general multi-vehicle ATFs unless explicitly stated to be compatible with ZF LifeguardFluid 8.
• Capacity: The total system capacity can range, but for a drain and refill, it's typically around 5-9 quarts (4.7-8.5 liters). A full flush would require more. Consult your owner's manual or a service manual for precise refill capacities.
• Intervals: Under normal operating conditions, the fluid is often considered "fill-for-life" by ZF, but for severe duty (towing, heavy off-roading, frequent short trips, hot climates), a service at 60,000-80,000 miles (96,000-128,000 km) is generally recommended.
• Common Pitfalls: Using the wrong type of ATF can cause severe and irreversible damage to the transmission. The precise level is critical; too little or too much fluid can cause problems. Checking the fluid level requires specific procedures, often involving a precise temperature range and the use of a diagnostic tool.

Manual Transmission (6-Speed Mopar C635)

• Type/Spec: Mopar C635 Manual Transmission Fluid, part number 68092632AD.
• Capacity: Approximately 2.75 quarts (2.6 liters).
• Intervals: Typically around 100,000 miles (160,000 km) or as indicated in the severe service schedule.
• Common Pitfalls: Do not substitute with standard gear oils or other ATFs unless they explicitly state compliance with the Mopar C635 specification. Always ensure the vehicle is level when checking and filling.

Transfer Case

• Type/Spec: The 2019 Wrangler models can come with several different transfer case options. Most common are the Command-Trac (NV241) and Rock-Trac (NV241OR), both requiring Mopar Transfer Case Fluid, which meets Mopar Material Standard MS-9602. This spec is largely synonymous with ATF+4, but always verify the MS-9602 specification.
• Capacity: Capacities vary by transfer case model, generally ranging from 1.3 to 3.6 pints (0.6 to 1.7 liters). Always verify the exact capacity for your specific transfer case model in your owner's manual or OEM service information.
• Intervals: It's generally recommended to change transfer case fluid every 60,000 miles (96,000 km) or less for severe usage.
• Common Pitfalls: Misidentification of the transfer case model can lead to using the wrong fluid. Ensure the fluid explicitly meets Mopar MS-9602. Never use engine oil, gear oil, or universal ATFs not meeting this spec.

Differential Fluid

The 2019 Jeep Wrangler can have various differential configurations depending on trim level (Sport, Sahara, Rubicon) and optional packages. It is critical to identify your specific axle type and whether it has a Trac-Lok (limited-slip) differential.

• Type/Spec (General): All differentials typically require API GL-5 specified gear oil. For Trac-Lok differentials, a friction modifier additive must be used in conjunction with the gear oil, or a pre-formulated limited-slip differential (LSD) oil that already contains the additive.
• Mopar Spec: Mopar MS-90032 is a general spec for these gear oils.

Front Differential

• Dana M186: SAE 75W-90, API GL-5. Capacity: 1.8 pints (0.85 liters). If equipped with Trac-Lok, add Mopar Gear & Axle Lubricant Additive Friction Modifier (or use a dedicated LSD gear oil).
• Dana M210: SAE 75W-85, API GL-5. Capacity: 2.1 pints (1.0 liters). If equipped with Trac-Lok, add Mopar Gear & Axle Lubricant Additive Friction Modifier (or use a dedicated LSD gear oil).

Rear Differential

• Dana M200: SAE 75W-90, API GL-5. Capacity: 2.5 pints (1.2 liters). If equipped with Trac-Lok, add Mopar Gear & Axle Lubricant Additive Friction Modifier (or use a dedicated LSD gear oil).

• Dana M220 (Rubicon): SAE 75W-140, API GL-5. Capacity: 4.8 pints (2.3 liters). This heavier weight is common for the Rubicon's more robust axles. If equipped with Trac-Lok, add Mopar Gear & Axle Lubricant Additive Friction Modifier (or use a dedicated LSD gear oil).

• Intervals: Differential fluid change intervals are typically around 20,000 miles (32,000 km) for severe duty (e.g., off-roading, water fording, heavy towing) and 40,000 miles (64,000 km) for normal use. Consult your owner's manual.

• Common Pitfalls: Using the wrong viscosity or type of gear oil, especially neglecting the friction modifier for Trac-Lok differentials, can lead to chatter, noise, and premature wear. Always ensure the differential cover gasket is in good condition or use a specified sealant upon reinstallation.

Brake Fluid

• Type/Spec: The 2019 Jeep Wrangler factory specifies DOT 3 or DOT 4 brake fluid. DOT 4 offers a higher wet and dry boiling point, providing a margin of safety, especially in demanding driving conditions or if the fluid isn't changed as regularly.
• Capacity: As needed to fill the master cylinder reservoir.
• Intervals: Brake fluid is hygroscopic, meaning it absorbs moisture over time, which lowers its boiling point and can lead to corrosion in the brake system. It is generally recommended to flush and replace brake fluid every 2 years or 30,000 miles (48,000 km), regardless of mileage.
• Common Pitfalls: Never mix DOT 3, DOT 4, or DOT 5.1 with DOT 5 fluid. DOT 5 is silicone-based and incompatible with the other glycol-ether-based fluids. Using the wrong fluid can cause seal degradation and brake failure. Always keep the brake fluid reservoir cap on to minimize moisture absorption. Do not allow brake fluid to come into contact with painted surfaces as it can damage the paint.

Power Steering Fluid

• Type/Spec: The 2019 Jeep Wrangler utilizes an electric power steering (EPS) system. Therefore, there is no traditional hydraulic power steering pump or fluid reservoir to service.
• Capacity: N/A
• Intervals: N/A
• Common Pitfalls: Not applicable as it's an electric system.

Washer Fluid

• Type/Spec: Any good quality automotive windshield washer fluid or Mopar Windshield Washer Concentrate mixed with water. For cold climates, ensure the fluid has adequate freeze protection.
• Capacity: As needed to fill the reservoir, which is typically a few liters.
• Intervals: As needed.
• Common Pitfalls: Do not use plain water, especially in freezing temperatures, as it can freeze and damage the washer system. Avoid household cleaners, as they can damage paint or plastic components.

Diesel Exhaust Fluid (DEF) (N/A for 2019 Wrangler)

The 2019 Jeep Wrangler was not offered with a diesel engine option in North America that would require Diesel Exhaust Fluid (DEF). The 3.0L EcoDiesel engine that uses DEF became available in later model years of the JL Wrangler.

Find a trusted shop on Repairius.