2015 Jeep Wrangler Oil Capacity & Filter

The 2015 Jeep Wrangler with the 3.6L Pentastar V6 engine takes 6 quarts (5.7 liters) of 5W-20 engine oil.

Quick answer

• Oil Capacity: 6 quarts (5.7 Liters)
• Recommended Oil Weight: 5W-20
• API Oil Specification: API SN PLUS or later, meeting Chrysler Material Standard MS-6395
• OEM Oil Filter: Mopar MO-339
• Aftermarket Oil Filter Cross-References:
  • Fram: CH11665
  • Wix: 57526
  • Mobil 1: M1C-251

Capacity by engine option

The 2015 Jeep Wrangler was exclusively offered with one engine option in most markets:

Oil change interval

Jeep recommends adhering to the following oil change intervals for your 2015 Wrangler:

• Normal Duty: Change oil and filter every 10,000 miles (16,000 km) or 12 months, whichever comes first.
• Severe Duty: If you operate your Wrangler under severe conditions, such as frequent short trips, extensive idling, dusty conditions, towing, or off-road use, it is recommended to change the oil and filter every 5,000 miles (8,000 km) or 6 months, whichever comes first.

Always refer to your owner's manual for the most accurate and up-to-date information regarding oil change intervals.

Drain plug torque

The drain plug on your 2015 Jeep Wrangler's 3.6L engine should be torqued to 20 ft-lbs (27 Nm). It is highly recommended to replace the crush washer (gasket) with a new one every time you change the oil to prevent leaks. The crush washer helps create a tight seal and is designed for single use.

How to change the oil

Changing the oil on your 2015 Jeep Wrangler is a straightforward process:

1. Warm up the engine: Drive the vehicle for a few minutes to bring the oil to operating temperature, making it flow more easily.
2. Park on a level surface: Ensure the vehicle is on a flat surface and engage the parking brake. For easier access, you may need to use jack stands or ramps.
3. Locate the drain plug: Place a suitable drain pan beneath the oil pan. Use an appropriately sized wrench to loosen and remove the drain plug, allowing the old oil to drain completely.
4. Replace the drain plug: Once the oil has drained, clean the drain plug, install a new crush washer, and re-install the drain plug. Torque it to 20 ft-lbs (27 Nm).
5. Remove the oil filter: The oil filter housing on the 3.6L Pentastar engine is located on top of the engine, typically near the front. Use an appropriate oil filter wrench to loosen and remove the cap. Carefully pull out the old filter element.
6. Install new oil filter: Insert the new oil filter element into the housing and replace the O-rings if new ones are provided with the filter. Thread the cap back on and hand-tighten, then give it a final snug with the wrench (do not overtighten).
7. Add new oil: Using a funnel, add 6 quarts of fresh 5W-20 engine oil through the oil filler cap on top of the engine.
8. Check oil level: Start the engine and let it run for a minute. Turn it off, wait a few minutes for the oil to settle, then check the oil level using the dipstick. Add more oil if necessary to bring it to the "FULL" mark.
9. Dispose of old oil: Properly dispose of the used engine oil at an authorized recycling center.

Common issues / tips

• Oil Filter Housing Leaks: The 3.6L Pentastar engine in this generation of Wrangler (JK) is known to develop oil leaks from the oil filter housing assembly, which is made of plastic. This issue often presents as oil pooling in the "valley" of the engine or dripping down the back. If you notice persistent leaks, have this component inspected.
• PCV Valve Issues: The Positive Crankcase Ventilation (PCV) valve is integrated into the oil filter housing on these engines. A failing PCV valve can lead to increased oil consumption or other engine performance issues. If replacing the oil filter housing, you'll also be addressing the PCV valve.
• Regular Oil Level Checks: Given the potential for consumption or leaks, it's a good practice to check your oil level regularly between oil changes, especially if you engage in off-road driving or towing.
• Use Quality Oil: Always use engine oil that meets Chrysler Material Standard MS-6395 and has an API SN PLUS or later rating to ensure proper lubrication and protection for your engine.

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