2018 Jeep Wrangler JK Oil Type & Capacity: 5W-20 (6.0 quarts)
The 2018 Jeep Wrangler JK takes 5W-20 motor oil — 6.0 quarts with a filter change, per the factory service manual.
Factory-spec answer
5W-20 — 6.0 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Rubicon, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Rubicon, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Sahara, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Sahara, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Sport S, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Sport S, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Sport, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Sport, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Rubicon, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Rubicon, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Sahara, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Sahara, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Sport S, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Sport S, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Sport, Automatic Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
| Unlimited Sport, Standard Trans | API - Certified Engine Oil, SAE 5W-20 | 6.00 QTS. | — | CHRYSLER recommends API Certified SAE 5W-20 Engine Oil, meeting the requirements of US Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Export - CHRYSLERrecommends API Certified SAE 5W-20 engine oil, meeting the requirements of Standard MS-6395 or 9.55535-CR1. SAE 5W-30 engine oil approved to Standard MS-6395 or 9.55535-CR1 or ACEA A1/B1 may be used when SAE 5W-20 engine oil is not available. |
More factory specs & repair guides for your Wrangler JK
🛞 2018 Jeep Wrangler JK Tire Size & Pressure →🌧️ 2018 Jeep Wrangler JK Wiper Blade Sizes →💡 2018 Jeep Wrangler JK Light Bulb Sizes →📖 2018 Jeep Wrangler JK Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
10.5 quarts (9.93 L) — MOPAR Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT (Organic Additive Technology) or equivalent. Includes: heater and coolant recovery tank filled to "max" level.
Frequently asked questions
What type of oil does a 2018 Jeep Wrangler JK take?
The 2018 Jeep Wrangler JK takes 5W-20 motor oil (API - Certified Engine Oil, SAE 5W-20), per the factory service manual.
What is the oil capacity of a 2018 Jeep Wrangler JK?
The 2018 Jeep Wrangler JK oil capacity is 6.0 quarts with a filter change.
How often should I change the oil in my 2018 Jeep Wrangler JK?
Most 2018 Jeep Wrangler JK owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Jeep recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2018 Jeep Wrangler JK?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 Jeep Wrangler JK. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.