2018 Jeep Wrangler — Full Specifications
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The 2018 Jeep Wrangler is an SUV offered with 2 engines (2L 4-cyl turbo, 3.6L 6-cyl). Its most fuel-efficient configuration returns around 24 mpg (UK) / 20 mpg (US EPA) combined, with 22–29 mpg (UK) across all configurations. A hybrid version is also listed by EPA (2L 4-cyl turbo), returning around 29 mpg (UK) combined. Owners often keep a Jeep Wrangler workshop manual to hand for servicing and repairs.
Related 2018 listings: Jeep Wrangler Unlimited.
Compared with the 2017 Jeep Wrangler: Fuel economy improves from 22 to 24 mpg (UK) combined on the most efficient configuration. EPA lists new engine options for 2018: 2L 4-cyl turbo.
Full Specifications
| Engine (most efficient) | 3.6L 6-cyl |
|---|---|
| Engine options | 2L 4-cyl turbo · 3.6L 6-cyl |
| Transmission (most efficient) | Automatic 8-spd |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | 4-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 24 combined / 22 urban / 28 extra-urban mpg |
| Fuel Economy (US EPA) | 20 combined / 18 city / 23 highway mpg |
| CO₂ Emissions | 275 g/km |
| EPA Greenhouse Gas Score | 3 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $3,350 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 4 configurations for the 2018 Jeep Wrangler across 2 engines (2L 4-cyl turbo, 3.6L 6-cyl). Combined fuel economy ranges from 18 to 24 mpg (US), or 22 to 29 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo (Hybrid) | Automatic 8-spd | 4-Wheel Drive | 29 | 24 (23/25) | 233 | $3,400 |
| 3.6L 6-cyl | Automatic 5-spd | 4-Wheel Drive | 22 | 18 (17/21) | 299 | $3,700 |
| 3.6L 6-cyl | Automatic 8-spd | 4-Wheel Drive | 24 | 20 (18/23) | 275 | $3,350 |
| 3.6L 6-cyl | Manual 6-spd | 4-Wheel Drive | 22 | 18 (17/21) | 298 | $3,700 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2018 Jeep Wrangler
Running Costs: 2018 Jeep Wrangler
Covering around 8,000 miles a year in a 2018 Jeep Wrangler at 24 mpg combined, expect roughly 1,515 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $3,350 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2018 Jeep Wrangler Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 14 safety recall campaigns that include the 2018 Jeep Wrangler (as of 6 October 2026). Most affected areas: Power train (4), Electrical system (3), Structure (2). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Back over prevention — campaign 24V676000, reported 12 September 2024. Risk: A rearview camera image that does not display decreases the driver's visibility, increasing the risk of a crash. Additionally, a center brake light that fails to illuminate can fail to indicate to other…
- Electrical system — campaign 24V652000, reported 5 September 2024. Risk: An instrument panel that fails to display critical safety information, such as the speedometer or warning lights, can increase the risk of a crash.
- Power train — campaign 23V116000, reported 23 February 2023. Risk: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.
- Power train — campaign 21V028000, reported 28 January 2021. Risk: Overheated clutch components may increase the risk of a fire. Additionally, damage to other nearby components can result in debris falling onto the road or a loss of drive, increasing the risk of a crash.
Showing the 4 most recent of 14 campaigns.
Owners have filed 1824 complaints with NHTSA about the 2018 Jeep Wrangler. The most-reported areas are Steering (1116), Suspension (342), Electrical system (268). Complaints include 22 reported crashes, 25 reported fires, 13 reported injuries. That is well above the median of 611 complaints across the 17 Jeep Wrangler model years in our data.
Used-buyer checklist for the 2018 Jeep Wrangler
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Steering (1116 owner complaints) — Check for play, noise or heavy steering, and ask whether any steering recall work was done.
- Suspension (342 owner complaints) — Listen for knocks over bumps and check tyre wear for signs of alignment problems.
- Electrical system (3 recall campaigns · 268 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Transmission & drivetrain (4 recall campaigns) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
How does the Jeep Wrangler compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 24 mpg figure is 3 mpg below that average. Its 275 g/km CO₂ figure is 22 g/km higher than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Jeep models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2018 Jeep Wrangler's 24 mpg is 3 mpg below that make average. Its 275 g/km CO₂ figure is 21 g/km higher than the 254 g/km Jeep average.
Of the 17 Jeep Wrangler model years we cover, the 2018 ranks 8th for combined fuel economy on its best configuration (24 mpg UK combined, against a high of 30 mpg). See every Jeep Wrangler year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2018 Jeep Wrangler
Frequently Asked Questions
What engine does the 2018 Jeep Wrangler have?
EPA lists 2 engines for the 2018 Jeep Wrangler: 2L 4-cyl turbo, 3.6L 6-cyl. The most fuel-efficient configuration pairs the 3.6L 6-cyl with a automatic 8-spd.
What is the fuel economy of the 2018 Jeep Wrangler?
The most efficient configuration returns around 24 mpg (UK) combined, or 20 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 22 to 29 mpg. The hybrid version returns around 29 mpg (UK) combined.
How much does the 2018 Jeep Wrangler cost to fuel per year?
The US EPA estimates about $3,350 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2018 Jeep Wrangler have any recalls?
NHTSA lists 14 safety recall campaigns that include the 2018 Jeep Wrangler (as of 6 October 2026). Most affected areas: Power train (4), Electrical system (3), Structure (2). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2018 Jeep Wrangler?
Among the 1,824 owner complaints filed with NHTSA, the most-reported areas are Steering (1116 complaints), Suspension (342 complaints), Electrical system (268 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Jeep Wrangler's fuel economy good for an SUV?
It returns around 24 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.