Complete Oil Specifications
The owner’s manual for the 2021 Jeep Grand Cherokee recommends API Certified SAE 0W-20 engine oil meeting FCA Material Standard MS-6395 (such as Mopar, Pennzoil or Shell Helix); the manual also says to check the engine oil filler cap for the correct SAE grade for the 3.6L engine. Engine oil capacity is 6 quarts (5.6 liters) with the filter.
3.6L vs 5.7L
The 2021 Grand Cherokee’s 3.6L takes SAE 0W-20 and holds 6 quarts with the filter; the 5.7L takes SAE 5W-20 and holds 7 quarts. Both must meet MS-6395.
When to Change the Oil
The Grand Cherokee has an automatic oil change indicator. When “Oil Change Required” appears, have the vehicle serviced within the next 500 miles (805 km). The manual also sets a hard limit: oil change intervals should never exceed 10,000 miles (16,000 km), 12 months or 350 hours of engine run time, whichever comes first.
What We Couldn’t Confirm
- Capacity without the filter, OEM filter part number and drain plug torque. None appear in the owner’s manual.
- Engine family name. The manual calls it the “3.6L Engine”.
FAQs
What oil does a 2021 Jeep Grand Cherokee 3.6L take? API Certified SAE 0W-20 engine oil meeting FCA Material Standard MS-6395 (such as Mopar, Pennzoil or Shell Helix); the manual also says to check the engine oil filler cap for the correct SAE grade.
How much oil does the 3.6L hold? 6 quarts (5.6 liters) with the filter.
How often should I change the oil? When the oil change indicator says so, and never more than 10,000 miles, 12 months or 350 engine hours, whichever comes first.