Oil
- Viscosity
- 0W-20
- Oil type
- Full Synthetic
- Capacity (with filter)
- 5 qt
- Capacity (without filter)
- 4.5 qt
OEM notes: MS-13340
2018 Jeep Wrangler Maintenance & Specs
Everything you need to maintain your 2018 Jeep Wrangler — oil specs, maintenance schedule, recalls, and more.
The 2018 Jeep Wrangler takes 0W-20 Full Synthetic with a total capacity of 5 quarts (filter included). You’ll need a 16mm socket for the drain plug, torqued to 34 Nm. The OEM oil filter is the Mopar 68191349AC, with 2 compatible alternatives listed below. Note: this vehicle has 14 active recalls — check the recalls section below. Below you’ll find complete maintenance specs, fluid capacities, parts, and links to buy what you need.
Data last verified: May 12, 2026
Oil
0W-20
Full Synthetic
Buy on Amazon →
Capacity
5 qt
with filter
Drain plug
16 mm
34 Nm torque
Filter
68191349AC
Mopar (OEM)
Buy on Amazon →
OEM spec: MS-13340
Quick DIY Tips for the 2018 Jeep Wrangler
- Torque your drain plug to 34 Nm (25 ft-lbs) to avoid leaks or stripped threads.
- Using the OEM filter (Mopar 68191349AC) is recommended for warranty compliance.
- Always use 0W-20 Full Synthetic as specified by Jeep — using the wrong viscosity can void your powertrain warranty.
- Check the maintenance schedule below for your next service interval.
Filter options
Drain bolt & hardware
- Socket size
- 16 mm
- Thread size
- M14x1.5
- Torque spec
- 34 Nm
- Gasket type
- Crush washer
Notes: JL (3.6L Pentastar V6 / 2.0L turbo I4)
Fluid specifications
Transmission Fluid
Buy →- Type
- ATF+4
- Capacity
- 4.5 qt
- Change interval
- 60,000 mi
Brake Fluid
Buy →- DOT type
- DOT 3
- Change interval
- 45,000 mi
Coolant
Buy →- Type
- HOAT
- Color
- Purple
- Capacity
- 7.5 qt
- Change interval
- 120,000 mi
Power Steering Fluid
Buy →- Type
- ATF+4
Differential Fluid (rear)
Buy →- Type
- 75W-90 GL-5
- Capacity
- 2 qt
- Change interval
- 60,000 mi
Differential Fluid (rear)
Buy →- Type
- 75W-90 GL-5
- Capacity
- 2 qt
- Change interval
- 60,000 mi
Parts & specifications
Spark Plugs
- Type
- Iridium
- Gap
- 0.044
- Quantity
- 4
- Change interval
- 100,000 mi
Battery
- Group size
- 26
- CCA
- 600
Tires
- Size
- 245/60R18
- Front pressure
- 33 PSI
- Rear pressure
- 33 PSI
Air Filter
Cabin Air Filter
Brake Pads
Wiper Blades
Maintenance schedule
Select a mileage interval above to see scheduled maintenance items.
Towing & Payload
Max Towing Capacity
3,500 lbs
Max Payload
1,000 lbs
Curb Weight
4,200 lbs
GVWR
5,500 lbs
Max Tongue Weight
350 lbs
Hitch Class
II
2-door: 2000 lbs
Source: manufacturer
Estimated Current Value
Original MSRP
$30,000
Private Party Value
$9,405 – $10,395
Dealer Retail Value
$10,890 – $12,375
Trade-In Value
$8,415 – $9,405
Depreciation
67%
Estimated values assume average condition and mileage for vehicle age.
Source: estimated
Safety recalls14
Technical Service Bulletins494
Torque specifications
- lug nut
- 100 ft-lbs / 135.6 Nm
- spark plug
- 18 ft-lbs / 24.4 Nm
14mm thread, aluminum head
Save by doing it yourself
A shop typically charges $70–$140 for this service. Buy the parts yourself and save.
Shop Parts for the Jeep Wrangler
Find oil, filters, and maintenance parts for the 2018 Jeep Wrangler on Amazon.
Tools & supplies
Step-by-step guide
Detailed walkthrough with tips for first-timers.
Read guide →How often to change oil
Intervals, severe service, and what your car needs.
Read guide →Synthetic vs. conventional
Which oil type is right for your engine and budget.
Read guide →Have info for this vehicle?
Help fellow owners — submit specs from your owner's manual.
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