🎯 The short answer
The phrase "what oil does a Jeep Grand Cherokee take" has a different answer depending on which engine is under the hood, and the WK2 (2011 to 2021) and WL (2022 and newer) generations both offered four or more engine choices. Get the weight wrong and you can trip oil-pressure faults, lose a couple of MPG, or accelerate wear. Get the capacity wrong and you either run low or overfill, which foams the oil and can blow seals. The table below covers every common engine so you can match yours exactly.
📋 Oil spec by engine
Find your engine, use the listed weight and capacity, and stick to a full-synthetic that meets the Chrysler MS spec printed in your owner's manual. Capacities below include a fresh oil filter.
| Engine | Oil Weight | Capacity (filter) | Spec |
|---|---|---|---|
| 3.6L Pentastar V6 (2014+) | 0W-20 synthetic | 6.0 qt / 5.7 L | MS-6395 |
| 3.6L Pentastar V6 (2011-2013) | 5W-20 synthetic | 5.9 qt / 5.6 L | MS-6395 |
| 5.7L HEMI V8 | 5W-20 synthetic | 7.0 qt / 6.6 L | MS-6395 |
| 6.4L HEMI V8 (SRT) | 0W-40 synthetic | 7.0 qt / 6.6 L | MS-12633 |
| 6.2L Supercharged (Trackhawk) | 0W-40 synthetic | 7.0 qt / 6.6 L | MS-12633 |
| 3.0L EcoDiesel V6 | 5W-40 synthetic | 10.5 qt / 9.9 L | MS-10902 |
| 2.0L Turbo (WL 4xe) | 0W-20 synthetic | 5.2 qt / 4.9 L | MS-6395 |
Capacities are approximate. Always fill to the dipstick, not just to the listed number. Diesel capacities are large, so buy two 5-quart jugs.
⚙️ Why the weight matters
The first number in a grade like 0W-20 is the cold-flow rating (the W is winter), and the second is the thickness at operating temperature. Jeep moved the Pentastar from 5W-20 to 0W-20 around 2014 to improve cold-start oil flow and squeeze out fuel economy. The two are close, but the factory spec is what your oil-pressure sensors and variable-valve-timing solenoids are calibrated for.
0W-20 engines (Pentastar V6, 2.0L turbo)
These are tuned around a thin oil. Running a thicker 5W-30 can slow flow to the VVT phasers at startup and on some model years log a fault. If you see a check engine light tied to camshaft timing, our guide on DTC P0011 (camshaft timing over-advanced) walks through how wrong oil viscosity and a clogged solenoid feed into the same code.
5W-20 engines (5.7L HEMI)
The 5.7L is forgiving, but it is also famous for lifter and cam wear. Using a quality full-synthetic 5W-20 and changing it on time is the cheapest insurance against the engine ticking noise these motors develop when oil changes get stretched.
0W-40 and 5W-40 engines (SRT, Trackhawk, EcoDiesel)
The high-output and diesel engines need a heavier, higher-film-strength oil. Do not substitute a 20-weight here. The 6.4L and supercharged 6.2L see real heat under load, and the EcoDiesel runs high cylinder pressures that thin oil cannot protect against.
⚠️ Common mistakes to avoid
- Overfilling the Pentastar. The 3.6L takes exactly 6 quarts. People dump in a 5-quart jug plus a full second jug and end up an entire quart over. Excess oil gets whipped into foam, spikes crankcase pressure, and can push oil past seals.
- Grabbing 5W-30 off the shelf. It is the most common viscosity in stores, so folks assume it fits. On a 0W-20 engine it hurts MPG and flow. Match the cap.
- Using conventional oil. Every current Grand Cherokee engine specs full synthetic. Conventional or a synthetic blend voids the long change interval and accelerates sludge.
- Ignoring the diesel's appetite. The 3.0L EcoDiesel takes over 10 quarts. One jug will not do it, and running it a quart and a half low is a fast way to a turbo or bearing problem.
- Trusting the oil-life monitor blindly. The algorithm can read 10,000 miles even if you only do short trips. Severe-duty driving needs an earlier change.
🕒 How often to change it
With full synthetic and normal driving, change the oil every 8,000 to 10,000 miles or once a year, whichever comes first. The factory oil-life monitor often targets 10,000 miles. That is realistic for highway use, but not for everyone.
| Driving Style | Suggested Interval |
|---|---|
| Mostly highway, full synthetic | 8,000 to 10,000 mi / 12 mo |
| Mixed daily driving | 6,000 to 7,500 mi |
| Towing, short trips, dusty roads, heavy idling | 5,000 to 6,000 mi |
| EcoDiesel (any use) | Per oil-life monitor, max 10,000 mi |
The decision framework
- Read the cap first. The viscosity is molded into the oil filler cap. That overrides any chart, including this one.
- Confirm full synthetic and the MS spec from your owner's manual, then buy oil that lists that approval on the back label.
- Fill short, then top off. Add about a half quart less than the listed capacity, run the engine, let it sit, and read the dipstick. Add to the full line.
- Reset the oil-life monitor through the dash menu so the reminder is accurate.
- If a warning light is on after the change, do not just clear it. Pull the code. Our repair quote checker helps you sanity-check what a shop wants to charge if the cause turns out to be a sensor or solenoid.
❓ FAQ
📝 TL;DR
- 3.6L V6 (2014+): 0W-20 full synthetic, 6 quarts.
- 5.7L HEMI: 5W-20 full synthetic, 7 quarts.
- 6.4L SRT / 6.2L Trackhawk: 0W-40 full synthetic, 7 quarts.
- 3.0L EcoDiesel: 5W-40 full synthetic, 10.5 quarts.
- Interval: 8,000 to 10,000 miles normal, 5,000 to 6,000 severe. Read the cap, fill short, top off to the dipstick.