The complete Jeep Wrangler JL maintenance schedule for 2018–present—covering the 3.6L Pentastar V6, the 2.0L turbo, and the 4xe plug-in hybrid with service intervals, verified Mopar part numbers, and how off-road use and hybrid hardware change the chart. Track powertrain-specific items in Carmainty so the right filter goes on the right engine.
Quick reference
JL uses an oil-life monitor on many builds, so treat mileage figures as maximums rather than fixed targets. Dust, water, and short-trip trail use still justify earlier filters and axle fluids than the brochure interval—see the severe and off-road section if you wheel.
| Interval | Service item | Notes & Mopar |
|---|---|---|
| Per oil-life monitor / ≤1 yr | Engine oil & filter | 3.6L: 68191349AC · 2.0T / many 4xe: 4892339BE |
| Every oil service | Tire rotation | Match tread depth · protects transfer case & axles |
| Every oil service | Brake inspection | Pads, rotors, lines · check after water / mud |
| Every 15,000–30,000 mi (24,000–48,000 km) | Engine air filter | 68257030AA · confirm 4xe / diesel alternatives |
| Every 15,000–30,000 mi (24,000–48,000 km) | Cabin filter | 68535621AA · supersedes 68301863AA |
| Every 30,000–60,000 mi (48,000–96,000 km) | Transfer case fluid | Sooner if severe · confirm fluid by VIN |
| Every 30,000–60,000 mi (48,000–96,000 km) | Front / rear axle fluid | Sooner for Rubicon / water use · confirm by VIN |
| Per engine chart | Spark plugs | 3.6L and 2.0T differ · confirm plug number by VIN |
| Per engine chart | Coolant | Time- and mileage-based · check level each oil change |
| Every 2–3 years | Brake fluid | Sooner if you wade or wheel often |
| After deep water / mud | Axles, breathers & fluids | Inspect for milky fluid · clear axle and transfer-case vents |
| 4xe only | High-voltage / hybrid checks | Per 4xe schedule in owner’s manual |
Powertrain-specific — don’t mix up your parts
Three powertrains, two oil filters. The 3.6L uses a cartridge; the 2.0T and many 4xe trucks share a spin-on. Confirm the engine—and on 4xe, the VIN—before ordering.
Sport · Sahara · Rubicon · Unlimited · some eTorque builds
68191349ACCartridge Mopar filter for most JL 3.6L applications.
Sport S · Sahara · Rubicon · Unlimited
4892339BESpin-on Mopar filter. Do not use on the 3.6L.
Sahara 4xe · Rubicon 4xe · Unlimited
4892339BE (many)Confirm filter by VIN on store.mopar.com. Engine runs less often on EV power, but oil still ages with time.
Detailed schedule
Expand each item for OEM numbers, capacities, and owner notes. Always confirm fitment for your year, engine, and drivetrain.
Per oil-life monitor · at least yearly
Many JL 3.6L and 2.0T engines specify 0W-20. Capacities differ by engine—confirm on the filler cap and in the owner’s manual. Reset the oil-life monitor after every change.
The monitor adapts to your driving, but off-road dust, towing, and short trips shorten oil life. If you wheel regularly, plan on changing sooner than the monitor suggests and set a Carmainty reminder at 5,000–7,500 miles (8,000–12,000 km).
68191349ACCartridge Mopar filter for most JL 3.6L applications.
4892339BESpin-on Mopar filter for 2.0L turbo JL (supersedes 4892339AA/AB). Confirm 4xe by VIN.
Every oil service
Rotate and measure tread at every oil change. Oversized or mixed-terrain tires wear unevenly—keep depths matched to protect the 4x4 system, and replace tires in sets whenever possible.
Inspect pads, rotors, and lines at the same visit. Mud and water packed around calipers speed up wear, so rinse the undercarriage after trail days before you inspect. 4xe trucks add regenerative braking, which can change how pads wear.
Every 15,000–30,000 miles (24,000–48,000 km) (sooner in dust)
JL cabin filters sit behind the glove box. Engine air filters load quickly on desert and gravel routes—inspect at every oil change and replace sooner than the chart if the element is packed.
68535621AACurrent Mopar cabin element for most JL / Gladiator gas and 4xe (supersedes 68301863AA). Diesel charcoal variants differ.
68257030AACommon JL panel element—confirm 4xe / diesel alternatives on store.mopar.com.
Every 30,000–60,000 miles (48,000–96,000 km) (severe sooner)
Rubicon trucks and frequent water crossings need earlier axle and transfer-case fluid than highway-only JL owners. Use the correct Mopar fluid for your axle package and transfer case; fluid type and fill procedure vary.
We intentionally do not list fluid part numbers here: confirm the exact Mopar fluid on store.mopar.com or with your dealer using your VIN before you buy.
Per engine chart
Spark plug type and interval differ between the 3.6L and 2.0T—follow the maintenance chart in your owner’s manual and confirm plug numbers by VIN. Coolant and brake fluid also run on time as well as mileage, so a low-mile truck can still be overdue.
Check coolant level at every oil change, and replace brake fluid every couple of years if you wade, tow, or wheel frequently.
Every oil service
Lifted or modified JLs add wear points: steering linkage, track bar and tie-rod ends, driveshaft joints and boots, and skid-plate hardware. A quick under-vehicle look at each oil change catches loose or damaged parts before a trail day does.
If you actually use your Jeep
Factory intervals assume normal driving. Dust, mud, rock crawling, towing, and water crossings count as severe use—and the schedule shortens. An oil-life monitor helps, but it cannot see water in your axles or dust packed into your air filter.
Water is the biggest hidden risk. Axle and transfer-case vents can draw in water after a deep crossing, turning gear oil milky and quickly damaging bearings and gears. When in doubt, check the fluid and change it.
Wrangler 4xe — Sahara, Rubicon, Unlimited
The 4xe pairs a 2.0L turbo with electric motors and a high-voltage battery pack. Core engine service mirrors the 2.0T—many trucks use 4892339BE and 0W-20—but the hybrid system adds its own checks on top of normal oil, filters, and 4x4 fluids.
Do not stretch oil intervals just because it runs on electric power part of the time. Short EV-only trips can leave the engine cold and moisture-prone, and oil still ages with time. Follow the 4xe schedule in your owner’s manual and the oil-life monitor.
Master reference
| Service | OEM / Mopar | Notes |
|---|---|---|
| Oil filter 3.6L | 68191349AC | Pentastar cartridge |
| Oil filter 2.0T / 4xe | 4892339BE | Supersedes 4892339AA / 4892339AB · confirm by VIN |
| Cabin filter | 68535621AA | Supersedes 68301863AA |
| Engine air filter | 68257030AA | Many gas JL · confirm 4xe / diesel |
| Oil viscosity | 0W-20 typical | Confirm filler cap |
| Transfer case fluid | Confirm by VIN | Varies by case · check store.mopar.com |
| Axle / differential fluid | Confirm by VIN | Varies by axle package · check store.mopar.com |
| Spark plugs | Confirm by VIN | 3.6L and 2.0T differ |
The real math
Neglected axle / transfer fluids after water → unit failure
Vs. timed fluid services
$2,000–$5,000+
Wrong oil filter for 3.6 vs 2.0T → fitment / filtration issues
Vs. matching engine filter
Engine wear risk
Ignored 4xe hybrid service → system repairs
Vs. scheduled hybrid inspections
$2,000–$8,000+
Packed air filter after trails → power / MPG loss
Vs. routine element replacement
Hundreds wasted
People also ask
When the oil-life monitor says so—and at least yearly. Dusty or severe trail use often lands between 5,000 and 7,500 miles (8,000–12,000 km). Reset the monitor after every change.
Most 3.6L: Mopar 68191349AC. Most 2.0T / many 4xe: 4892339BE (supersedes 4892339AA/AB). Confirm on store.mopar.com with your VIN.
Cabin filter for most JL gas and 4xe: 68535621AA (supersedes 68301863AA). Engine air filter commonly: 68257030AA. Confirm 4xe or diesel variants on store.mopar.com by VIN.
Typically every 30,000–60,000 miles (48,000–96,000 km), and sooner with severe use or Rubicon-style wheeling. After deep water or heavy mud, inspect immediately and change milky or contaminated fluid. Confirm the exact Mopar fluid for your axles and case by VIN.
Yes. Shorten oil intervals, inspect the air filter every oil change, service axle and transfer-case fluids sooner (especially after water), clear breathers, inspect driveline and steering parts, and rinse the undercarriage after mud or salt.
Same core service as the 2.0T—many trucks use 4892339BE and 0W-20—plus hybrid checks: high-voltage battery and cooling inspection per the owner’s manual, annual 12V battery test, charge-port inspection, and 2-year brake fluid. High-voltage work should be done by a trained technician.
Both were sold in 2018. JL is the redesign (this page). JK is the prior generation—see the 2007–2018 JK schedule. Check the VIN or build sheet before ordering parts.
Yes—Carmainty lets you log mileage, set reminders for each interval on this page, attach receipts, and track multiple vehicles. Free to download on the App Store and Google Play.