Quick answer: the 2020–2025 Jeep Gladiator 3.6L V6 takes 5 qt (4.7 L) of SAE 0W-20 with a filter change. The 3.0L EcoDiesel takes 9 qt (8.5 L) of 5W-40 full synthetic.
| Engine | Oil capacity (with filter) | Oil type |
|---|---|---|
| 3.6L Pentastar V6 | 5 qt (4.7 L) | 0W-20 (MS-6395) |
| 3.0L EcoDiesel V6 | 9 qt (8.5 L) | 5W-40 full synthetic (MS-12991) |
The diesel takes almost twice as much.
Oil capacity by year
| Model year | 3.6L | 3.0L diesel |
|---|---|---|
| 2020 | 5 qt | — |
| 2022 | 5 qt | 9 qt |
| 2024 | 5 qt | — |
| 2025 | 5 qt | — |
We read the fluid capacities table and the engine fluids section of every manual listed under Sources.
Recommended oil type
3.6L: API Certified SAE 0W-20 meeting FCA Material Standard MS-6395.
3.0L EcoDiesel: Mopar SAE 5W-40 full synthetic meeting MS-12991.
How to reset the oil change light on the 2020–2025 Jeep Gladiator
See also: Oil life reset by brand.
Most of these owner’s manuals describe two ways to reset the oil change indicator after an oil change: in the instrument cluster display, go to the Oil Life item and confirm Reset; or, with the ignition in ON/RUN and the engine off, fully press the accelerator pedal slowly three times within 10 seconds, then turn the ignition off. Check your manual for the exact menu on your model.
Oil change tips
- 3.6L: one 5-quart jug.
- The capacity is approximate. After refilling, run the engine briefly, turn it off, wait a few minutes and check that the level is in the safe range on the dipstick before adding more.
Sources and how we checked
All capacities and oil grades on this page come from the owner’s manuals published by FCA US (Stellantis) on Mopar’s official owner site (“Technical Specifications”: fluid capacities and engine fluids and lubricants):
- 2020 Gladiator owner’s manual
- 2022 Gladiator owner’s manual
- 2024 Gladiator owner’s manual
- 2025 Gladiator owner’s manual
If your owner’s manual shows something different, follow your manual and tell us.
Last checked: October 26, 2026.
FAQ
How much oil does a Jeep Gladiator take?
5 qt (4.7 L) for the 3.6L V6 with a filter change.
What oil does a Gladiator use?
API Certified SAE 0W-20 meeting MS-6395.
How much oil does the Gladiator EcoDiesel take?
9 qt (8.5 L) of 5W-40 full synthetic.
Is a 5-quart jug enough?
Yes for the 3.6L.
How do I reset the oil light?
Use the Oil Life menu in the cluster, or press the accelerator slowly three times within 10 seconds with the ignition ON.
Related: Jeep Wrangler JL.