Jeep · 2021
Wrangler 4dr 4WD 3.6L 6-cyl
✓ EPA Verified
Regular Gasoline
Small Sport Utility Vehicle 4WD
4-Wheel Drive
City
19
MPG
Combined
21
MPG
Highway
24
MPG
Annual Fuel Cost
$2,100
Based on 15,000 miles/year · EPA estimates
vs avg gas vehicle
$50
saved per year
Class Comparison — Small Sport Utility Vehicle 4WD
Bottom 14%
Better than 14 out of 100 vehicles in its class for fuel efficiency.
This vehicle: 21 MPG
This vehicle
21 MPG
Class average
31 MPG
Class lowest
14 MPG
EPA Energy & Environment Scores
4
Energy Score
Out of 10
4
GHG Score
Out of 10
421 lbs
Annual CO₂
g/mile tailpipe CO₂
Yes
Start-Stop
Auto stop-start
Vehicle Specifications
Engine3.6L 6-cyl
TransmissionAutomatic 8-spd
Drive4-Wheel Drive
Fuel TypeRegular Gasoline
Vehicle ClassSmall Sport Utility Vehicle 4WD
TrimHybrid
Engine DescMild Hybrid
Start-StopYes
EPA Vehicle ID42908

21 MPG combined isn’t going to win the 2021 Jeep Wrangler 4dr 4WD 3.6L any fuel efficiency contests. This figure, representing a mix of city and highway driving, is largely irrelevant to the Wrangler’s core demographic. These are buyers who prioritize capability, aftermarket customization, and the open-air driving experience above all else. They willingly accept a trade-off in fuel economy for the unique character and undeniable off-road prowess the Wrangler delivers.

City and highway performance

The EPA estimates for the 2021 Wrangler 4dr 4WD 3.6L show 19 MPG in the city and 24 MPG on the highway. The city rating reflects the Wrangler’s boxy aerodynamics and solid axles, characteristics that hinder efficiency in stop-and-go traffic. The highway rating is more respectable, hinting at what’s possible with a steady throttle and minimal aerodynamic resistance. However, even on the open road, the Wrangler’s off-road oriented tires and upright windshield prevent it from matching the fuel efficiency of more streamlined SUVs.

Annual fuel cost

The EPA estimates that the annual fuel cost for this particular Wrangler configuration is $2,100. This figure is based on driving 15,000 miles per year and using national average fuel prices. Individual fuel costs will certainly vary depending on driving habits, local fuel prices, and the type of driving environment predominantly encountered. Aggressive driving, frequent off-roading, or living in an area with high gas prices will all push your annual fuel bill higher than the EPA’s estimate. Conversely, those who drive fewer miles or live where gasoline is cheaper may find their annual costs are lower.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy in the 2021 Wrangler can vary significantly. Owners report achieving figures close to the EPA estimates during normal daily driving. Factors such as aftermarket modifications (lift kits, larger tires, roof racks), driving style, and terrain can have a considerable impact. Expect lower MPG if you frequently engage in aggressive acceleration, high-speed driving, or off-road excursions. Conversely, mindful driving habits and keeping the vehicle in its stock configuration can help you stay closer to the EPA’s projections. Remember to check the WRANGLER MPG across all years as well.

How it compares

Compared to other mid-size SUVs, the 2021 Wrangler 4dr 4WD 3.6L lags behind in fuel economy. The Toyota 4Runner TRD Pro, another off-road focused SUV, manages around 17 MPG combined. The Nissan Frontier Pro-4X gets around 19 MPG combined, and the Ford Bronco Badlands (with the 2.3L engine) gets right around a combined 20 MPG. These vehicles offer varying degrees of off-road capability, but the Wrangler’s open-air design and solid front axle set it apart. While competitors like the Honda Passport (22 MPG combined) or the Kia Telluride (21 MPG combined) offer superior fuel economy, they lack the Wrangler’s rugged charm and iconic status. For buyers who prioritize fuel efficiency above all else, these alternatives are worth considering. But those who value the Wrangler’s unique character and off-road pedigree are less likely to be swayed by slightly improved MPG figures. Check out all Jeep fuel economy data too.

Tips to maximize efficiency

Regular maintenance is critical for optimizing fuel economy in any vehicle, but especially in a Wrangler that’s often subjected to demanding conditions. Ensure your tires are properly inflated to the recommended pressure, and keep up with scheduled oil changes and air filter replacements. A well-maintained engine simply runs more efficiently, extracting the most energy from each gallon of gasoline.

Driving style can significantly impact fuel consumption. Avoid aggressive acceleration and hard braking, as these habits guzzle fuel. Maintaining a steady speed on the highway and anticipating traffic flow can help improve your MPG. Use cruise control whenever appropriate to maintain a consistent speed and minimize unnecessary throttle inputs.

Consider removing any unnecessary weight from your Wrangler. Extra cargo, roof racks, and other accessories can increase aerodynamic drag and reduce fuel efficiency. If you don’t need it, take it out. This is particularly true for heavy items that add significant weight to the vehicle.

Be mindful of your tire choice, especially if you’re not a frequent off-roader. Aggressive off-road tires often have a higher rolling resistance, which can decrease fuel economy on paved roads. Consider using a less aggressive tire with a lower rolling resistance if you primarily drive on the street. Switching back to the stock tires when not off-roading.