2015 Jeep Grand Cherokee Oil Capacity & Filter Guide

The 2015 Jeep Grand Cherokee equipped with the popular 3.6L Pentastar V6 engine requires exactly 6.0 quarts (5.7 liters) of 0W-20 engine oil. Because the Grand Cherokee (part of the WK2 generation) was offered with four distinct engine options in 2015, including a diesel and a high-performance SRT V8, your specific capacity and oil weight will depend on what is under the hood.

Below is your comprehensive ASE-certified guide to servicing the oil on your 2015 Jeep Grand Cherokee.

Quick answer (3.6L V6)

If you are working on the standard 3.6L V6 model, here is the cheat sheet for your next oil change:

• Oil Capacity: 6.0 quarts (5.6 L) with filter change.
• Recommended Weight: 0W-20.
• Oil Specification: API Certified, Chrysler Material Standard MS-6395.
• OEM Oil Filter: Mopar MO-349 (Part # 68191349AA).
• Aftermarket Cross-References: Fram CH11665, Wix WL10010, Mobil 1 M1C-254A.

Capacity by engine option

Make sure to verify your engine displacement before buying oil, as the requirements change dramatically between the V6, EcoDiesel, and V8 models.

Oil change interval

The 2015 Jeep Grand Cherokee is equipped with an automatic Oil Life Indicator system that will alert you when it's time to change the oil based on your driving habits. However, it's best to follow these baseline rules:

• Normal Duty: Up to 10,000 miles or 12 months, whichever comes first. (The oil life monitor should never exceed this).
• Severe Duty: 4,000 to 5,000 miles or 6 months. Severe duty includes extensive idling, frequent short trips under 10 miles, off-roading, towing a trailer, or driving in dusty conditions.

Note: For the 3.0L EcoDiesel, do not exceed 10,000 miles or 12 months. Ensure you are using high-quality synthetic diesel oil.

Drain plug torque

Proper torque prevents stripped oil pans and nagging leaks:

• 3.6L V6: 20 ft-lbs (27 Nm)
• 5.7L & 6.4L V8: 25 ft-lbs (34 Nm)
• 3.0L EcoDiesel: 25 ft-lbs (34 Nm)

Crush washer note: Unlike some imports, most modern Mopar drain plugs feature an integrated rubber O-ring gasket. Inspect the rubber seal; if it is flattened, cracked, or missing, replace the entire drain plug.

How to change the oil

1. Prepare the vehicle: Park on a level surface, set the parking brake, and raise the front of the vehicle safely using ramps or a jack and jack stands.
2. Access the filter (3.6L / 3.0L): Open the hood. The 3.6L V6 and 3.0L Diesel use a cartridge-style filter located on top of the engine. Use a 24mm socket (V6) to carefully remove the plastic filter housing cap. Replace the paper cartridge and the rubber O-ring on the cap. (V8 models use a traditional spin-on filter underneath the engine).
3. Drain the old oil: Locate the oil pan and remove the drain plug. Allow the oil to drain completely into an appropriate catch pan.
4. Reinstall the plug: Thread the drain plug back in by hand, then tighten to the appropriate torque spec (20-25 ft-lbs).
5. Fill and check: Pour in the required amount of fresh oil. Start the engine and let it run for a few seconds to circulate the oil and fill the filter housing. Turn it off, wait a few minutes, and check the dipstick to ensure the level is perfect.
6. Reset the light: Turn the ignition to the RUN position (engine off). Fully depress the accelerator pedal slowly three times within 10 seconds. Turn the ignition off.

Common issues / tips

If you are working on the 3.6L Pentastar V6, be extremely careful when tightening the plastic oil filter housing cap. A very common issue on the WK2 generation is over-tightening this cap, which causes the entire oil cooler/filter housing assembly to crack. This results in a massive oil leak into the valley of the engine. Tighten the cap only to 18 ft-lbs (25 Nm) or simply "snug" by hand. Do not use excessive force.

Additionally, for the 5.7L Hemi V8, strictly adhere to the 5W-20 oil weight requirement. The Multi-Displacement System (MDS), which deactivates cylinders to save fuel, relies on exact oil pressure and viscosity to function properly. Using a heavier oil can trigger check engine lights and MDS failure.

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