Quick answer: The factory-confirmed specification currently available in our source database is for the 2008 Jeep Wrangler JK/JKU 3.8L: 6 US qt (5.7 L) with filter, using SAE 5W-20 oil meeting MS-6395. The 2007, 2009, 2010 and 2011 model years remain pending exact-year verification.
APPLIES TO: 2007–2011 Jeep Wrangler JK and JKU · 3.8L EGH V6.
DOES NOT APPLY TO: 2012–2018 JK/JKU with the 3.6L Pentastar. Use the 3.6L engine-oil capacity reference instead.
2008 Factory-Confirmed Oil Specification
| Item | Confirmed value | Source |
|---|---|---|
| Capacity with filter | 6 US qt / 5.7 L | 2008 Wrangler Owner’s Manual, pp. 424–425 |
| Oil viscosity and standard | SAE 5W-20 · MS-6395 | 2008 Wrangler Owner’s Manual, p. 384 |
Do not silently extend the 2008 figure to another model year. Check the owner’s manual and oil-filler cap for the exact Jeep. This page will add other years only after the matching factory publication is verified.
2007–2011 Verification Status
| Model year | Published value | Status |
|---|---|---|
| 2007 | Not published | [VERIFY: 2007 3.8L oil capacity and oil type — confirm against the 2007 Wrangler owner’s manual] |
| 2008 | 6 US qt / 5.7 L with filter · SAE 5W-20, MS-6395 | Factory confirmed |
| 2009 | Not published | [VERIFY: 2009 3.8L oil capacity and oil type — confirm against the 2009 Wrangler owner’s manual] |
| 2010 | Not published | [VERIFY: 2010 3.8L oil capacity and oil type — confirm against the 2010 Wrangler owner’s manual] |
| 2011 | Not published | [VERIFY: 2011 3.8L oil capacity and oil type — confirm against the 2011 Wrangler owner’s manual] |
Oil Drain-Plug Information
No drain-plug torque or socket-size figure is published here because neither value has an approved source in the project database. Confirm both against factory service information for the exact model year before relying on a number.
What People Get Wrong
- Treating 2007–2011 as one verified specification. Only the 2008 value is currently factory-confirmed in our database.
- Using the 3.6L page for a 3.8L Jeep. The engine changed for 2012, so check the VIN year and engine before buying oil.
- Copying an unsourced drain-plug torque. A repeated number is not a verified specification.
- Ignoring the dipstick after filling. Nominal capacity does not replace a final level check on the actual vehicle.
FAQ
What is the 2008 Jeep Wrangler 3.8L oil capacity?
The 2008 Wrangler owner’s manual specifies 6 US qt (5.7 L) with the filter for the 3.8L engine.
What oil does the 2008 Jeep JK 3.8L use?
The factory publication specifies SAE 5W-20 meeting MS-6395.
Does the same capacity apply to every 2007–2011 JK?
That is not claimed here. The site currently has factory confirmation for 2008 only. Verify the matching owner’s manual for a 2007, 2009, 2010 or 2011 Jeep.
What is the 3.8L oil drain-plug torque?
No approved source has been established for that figure, so this page does not publish a number.
Next Steps
VERIFY Flags
- [VERIFY: 2007 3.8L oil capacity and oil type — confirm against the 2007 Wrangler owner’s manual]
- [VERIFY: 2009 3.8L oil capacity and oil type — confirm against the 2009 Wrangler owner’s manual]
- [VERIFY: 2010 3.8L oil capacity and oil type — confirm against the 2010 Wrangler owner’s manual]
- [VERIFY: 2011 3.8L oil capacity and oil type — confirm against the 2011 Wrangler owner’s manual]
- [VERIFY: 3.8L oil drain-plug torque and socket size — confirm against exact-year factory service information]
Technical numbers follow the OffroadMe source hierarchy. Corrections are welcome through the contact page.