2015 Jeep Cherokee Fluid Specs

Quick Reference

Fluid	Type/Spec	Capacity
Engine Oil	5W-20, API SN, ILSAC GF-5 or Chrysler MS-6395	5.5 qt (2.4L) / 6 qt (3.2L)
Engine Coolant	Mopar OAT (purple), MS-12106	10.3 qt
Transmission Fluid	Mopar ZF 8&9 Speed ATF, MS-90030-A2	~5.5 qt (service refill)
Transfer Case Fluid	Mopar ATF+4, MS-9602	~1 qt
Front Differential	75W-90 Gear Oil	~0.5 qt
Rear Differential	75W-90 Gear Oil	~1 qt
Brake Fluid	DOT 4	~1 qt
Power Steering	Electric, no fluid	N/A
Washer Fluid	-30°F all-season	~1 gal
DEF	N/A (gasoline engine)	N/A

Engine Oil

The 2015 Jeep Cherokee offers two engine options: the 2.4L Tigershark MultiAir 2 and the 3.2L Pentastar V6. Both engines require a high-quality synthetic blend or full synthetic 5W-20 oil meeting specific Chrysler and industry standards. Look for oils that are API SN and ILSAC GF-5 certified, and for the most complete protection, that meet the Chrysler MS-6395 specification. This ensures the oil has the correct additives for long-term protection of your engine's intricate components.

While some oils may be marketed as "universal," it is critical to use the correct viscosity and certification. Using a heavier-weight oil like 10W-30 can lead to reduced fuel economy and put a strain on the oil pump. In contrast, a lighter-weight oil may not offer adequate protection under high-load conditions.

Service intervals are best determined by your Jeep's oil life monitoring system, which will alert you when an oil change is due. However, a good rule of thumb is to change the oil every 5,000 to 7,500 miles, or every six months, whichever comes first. For those who frequently tow, drive in dusty conditions, or make many short trips, more frequent oil changes are a wise investment.

Engine Coolant

One of the most critical fluids in your Cherokee is the engine coolant, which is responsible for maintaining a stable operating temperature. For the 2015 model year, Jeep specifies a Mopar OAT (Organic Acid Technology) coolant that meets the MS-12106 specification. This coolant is purple in color and is formulated for a 10-year or 150,000-mile service life.

It is imperative that you do not mix this OAT coolant with other types, such as the older HOAT (Hybrid Organic Acid Technology) coolants used in other Chrysler products. Mixing coolant types can lead to a chemical reaction that causes the coolant to gel, clogging the radiator and heater core and leading to catastrophic engine damage. If you are unsure what type of coolant is in your vehicle, it is best to have the system flushed and refilled by a qualified technician.

When topping off the coolant, use only the specified Mopar OAT or an equivalent that explicitly meets the MS-12106 spec. Never use a "universal" coolant, as these often lack the specific additives your Jeep's cooling system requires.

Transmission Fluid

The 2015 Cherokee is equipped with a sophisticated 9-speed automatic transmission that requires a very specific fluid to function correctly. The factory-specified fluid is Mopar ZF 8&9 Speed ATF, which meets the MS-90030-A2 specification. This is a full synthetic fluid designed to provide consistent shift quality and long-term protection for the transmission's complex internal components.

Due to the complexity of the 9-speed transmission, it is not recommended for the average DIYer to attempt a fluid change. The procedure requires specialized tools to ensure the fluid level is correct, and over- or under-filling can lead to serious transmission problems. Therefore, it is best to entrust this service to a trusted shop with the proper equipment and expertise.

Transfer Case and Differentials

For 4WD models, the transfer case and differentials also require regular fluid changes. The transfer case uses Mopar ATF+4, the same fluid used in many older Chrysler automatic transmissions. This is a full synthetic fluid that provides excellent protection against wear and tear.

The front and rear differentials both require a 75W-90 gear oil. If your Cherokee is equipped with a limited-slip differential, be sure to add a friction modifier to prevent chattering and binding during tight turns. As with the transmission, it is best to have a qualified technician perform this service to ensure the correct fluid and fill level.

Brake and Other Fluids

The brake system in your 2015 Cherokee requires a DOT 4 brake fluid. This is a glycol-based fluid that can absorb moisture, so it is important to change it every two to three years to prevent corrosion and ensure optimal braking performance.

The power steering in the 2015 Cherokee is electric, so there is no power steering fluid to check or change. The washer fluid reservoir should be kept full with a quality all-season washer fluid that is rated for at least -30°F to prevent freezing in the winter.

Finally, since the 2015 Cherokee is a gasoline-powered vehicle, there is no need for Diesel Exhaust Fluid (DEF).

By following these fluid specifications and service intervals, you can help ensure your 2015 Jeep Cherokee provides many years of reliable service.

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