How Many Gallons Does a Jeep Wrangler Hold – [Answered]

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If you’re in the market for a Jeep Wrangler, a question you’re probably wondering about what a Jeep Wrangler’s tank size is. After all, with larger vehicles come bigger gas tanks. So, how many gallons does a Jeep Wrangler hold? I’ve got the answer for you.

As someone who’s worked in the automotive industry for many years, I’ll be using this experience to explore the Jeep Wrangler and Jeep Wrangler unlimited tank size, and how that compares with other models on the market for off-roading vehicles of the same classes. Let’s get started by answering the all-important question!

How Many Gallons Does a Jeep Wrangler Hold?

A Jeep Wrangler typically holds between 17.5 and 21.5 gallons of gasoline, depending on what engine, model, and trim you choose. For example, the 6.4L V8 engine that comes standard with the Rubicon 392 has a larger gas tank and can hold up to 21.5 gallons.

How Many Gallons Does a Jeep Wrangler Hold

The Jeep Wrangler is a popular choice for off-roading and adventure seekers. If you’re planning on taking your Jeep Wrangler on a long road trip or off-roading adventure, it’s always a good idea to fill up the gas tank before you go. It’s easy to assume you’ll be fine, since the tank capacity is high, but filling it up completely means you won’t have to worry about running out of fuel in the middle of nowhere!

How to Improve Your Wrangler’s Fuel Economy

There are several methods of improving your fuel economy that vary depending on how you drive, the environment you usually drive in, and what your car is normally used for. Here we will outline each method’s details.

Choose the best engine for the job

If you’re looking to increase your Jeep Wrangler’s fuel economy, one of the best things to do is select the right engine. A few engine options available for the Wrangler and Wrangler Unlimited, and each has its own pros and cons in terms of fuel economy.

The base engine for the Wrangler is a 3.6L V6 that produces 285 horsepower and 260 lb-ft of torque. This engine is capable of an EPA-estimated 17 mpg in the city and 23 mpg on the highway. 

If you’re looking for a bit more power, you can choose the 2.0L turbocharged hybrid four-cylinder engine. This engine produces 270 horsepower and 295 lb-ft of torque. This engine gets slightly better fuel economy thanks to the paired electric motor with its engine – it has an EPA-estimated 21 mpg in the city and 24 mpg on the highway.

Adding Engine Oil in the Car Engine

Finally, there’s the 6.4L V8 engine that is the most powerful engine offered by Jeep for the Wrangler. This engine produces 470 horsepower and 470 lb-ft of torque. Unfortunately, this engine has the lowest fuel economy, with an EPA-estimated 13 mpg in the city and 17 mpg on the highway. 

Ensure You Have Proper Tire Inflation

One of the fundamental ways you can improve your Jeep Wrangler’s fuel economy is by ensuring that your tires are inflated properly;  properly inflated tires can improve fuel economy by up to 3%. This may seem like a small thing, but it can make a big difference in how much fuel your Jeep uses.  

Properly inflated tires ensure that your vehicle has an even surface when touching the road, which keeps its center-of-gravity closer to the middle of the car. This improves the fuel economy as well as overall comfort while driving the vehicle.

Avoid Excessive Idling

You can also improve your Jeep’s fuel economy by avoiding excessive idling. If you know you’re going to be stopped for more than a minute or two, turn off your engine and try to open some windows instead of using the A/C and using up more fuel. 

This is mainly useful if you are in a long traffic jam or waiting for someone while sitting in your car. However, try not to turn on and off your car frequently, as that can be bad for your starter and battery life.

Carry Less Weight

Another way to improve your Wrangler’s fuel economy is to reduce the weight of any unnecessary items that you may carry around. A few examples of these would be spare wood, old equipment or paper, any sort of spare parts for a car and so on.

Just adding 100 pounds to your car’s total weight through modifications or carrying things in the trunk can reduce fuel economy by up to 2%.   

If you regularly carry heavy items for work or for long weekends, consider investing in a set of light-weight wheels. This also applies if you do a regular amount of off-roading: light-weight wheels can improve fuel economy by up to 4% for a daily driven vehicle.

Less Aggressive Driving

One of the easiest ways to improve your Jeep Wrangler’s fuel economy is simply to drive less aggressively. Aggressive driving (speeding, rapid acceleration, etc.) can decrease fuel economy by up to 33%. If you take it easy on the gas pedal, you’ll notice a significant improvement in your Jeep’s mileage and an overall smoother driving experience.

This also helps keep other parts of your car to have overall less wear and tear as brake pads, brake disks, transmission and other mechanical parts, can become overly worn through constantly being pushed to their limit by sudden speeding and braking.

Regular Maintenance

Finally, keep your Jeep in good condition overall. This means regularly checking and servicing things like the air filter, spark plugs, and other parts of the engine. Also, ensure to check over all the fluids within the car and have them always topped up to the correct level without having them go over that level. 

Regular Maintenance of Jeep

Doing this at a Jeep service center is best since the technicians and mechanics specialize in working with Jeep vehicles. A well-maintained Jeep will run more efficiently and use less fuel over a long period.


Below are a few important FAQs about how many gallons a Jeep Wrangler holds that I have answered.

How big of a gas tank does a Jeep Wrangler have? 

The Jeep Wrangler gas tank can hold between 17.5 and 21.5 gallons of gas, depending on what engine, model, and trim level you choose.

How many gallons is a full tank on a Jeep Wrangler? 

A full tank can hold up to 17.5 gallons of gas for certain models and 21.5 for other models.

How many gallons of gas does a 2022 Jeep Wrangler hold? 

A 2022 Jeep Wrangler holds between 17.5 to 21.5 gallons of fuel depending on what model you choose.


The amount of gallons of gas that a Jeep Wrangler holds depends on its model year and trim level. Generally, the different models have tanks that can hold 17.5 to 21.5 gallons. You can also carry extra cans for long weekend trips or off-roading adventures. 

Knowing exactly how many gallons your Jeep Wrangler holds is important in order to ensure proper maintenance and care for your vehicle. With this information in mind, you can now confidently estimate how much gas you need before heading out on any long trips!

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