2021 Jeep Wrangler Gas Tank Size
The 2021 Jeep Wrangler gas tank varies in size between 17.2 gallons and 21.5 gallons—which one you get depends on engine type and body size.
Written by Matt Nightingale
Reviewed by Kathleen Flear
The 2021 Jeep Wrangler can be had in either a two or four-door variant and comes available with five engine options. Most 2021 Wranglers come with four doors and a 21.5-gallon gas tank, but plug-in hybrid models are only available with a 17.2-gallon tank.
If you’re unsure what size gas tank your particular Wrangler has, you can find that information in your owner’s manual. If you’re away from your owner's manual, don’t worry—
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How big is the gas tank on a Jeep Wrangler?
Jeep’s off-road trail boss comes with a pretty big gas tank no matter how you spin it, but the size of your Wrangler’s fuel tank depends on the cab size and engine type of your particular model and trim level. These are the configurations that are outfitted with different sizes of gas tanks:
- 4-door, gas engine models
- 2-door, gas engine models
- Hybrid models
- Diesel models
Most 2021 Wranglers are four-door models boasting a 21.5-gallon gas tank. There are eight two-door models with a smaller 17.5-gallon tank, three hybrid options with a 17.2-gallon tank, and a diesel variant sporting a 21.2-gallon fuel tank.
How to check your Jeep Wrangler’s gas tank size
If you’re still confused as to how big your Wrangler’s gas tank is, you can find out for yourself using a few different methods.
Measure the gas tank
The first method is how they did it back in caveman times: with a measuring stick.
All you have to do to find out how many gallons of gasoline your fuel tank holds is to measure the tank's length, width, and height in inches, multiply those numbers together, and divide by 231, which is the number of cubic inches in a gallon.
So, for example, if your tank measures 13 inches in width, 15 inches in height, and 35 inches in length, your total fuel capacity would be 6,825 cubic inches. To convert that to gallons, simply divide that number by 231, and that will tell you how many gallons fit into your tank—in this case, 29.55 gallons.
Check your owner’s manual
The easiest way to find your vehicle’s gas tank capacity is just to simply look it up in your owner’s manual. To find this information, just search for terms like “fuel capacity” or “fuel tank” in the manual’s table of contents or index.
Drive till empty, then fill it up
Another way to get a rough estimate of your Wrangler’s fuel tank size is to drive until your fuel gauge is on “E”. Then, all you have to do is fill up your gas tank and take note of how many gallons you pumped into your Jeep.
Be careful when trying this method as you do not want to
run out of fuel completely while driving
. Running out of gas will cause your engine to stall which could be disastrous if you are driving off-road or at high speeds.RECOMMENDED
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How to save on fuel costs in a Jeep Wrangler
The 2021 Wrangler is available with five engine options and two cab size options. Your Jeep’s fuel efficiency will differ depending on which engine and cab size you have. Here’s a look at how each of these different configurations performs with regard to fuel economy:
- 4-door, gas engine: 20 combined mpg
- 2-door, gas engine: 21 combined mpg
- 4-door hybrid: 49 combined mpg
- 4-door diesel: 25 combined mpg
The Jeep Wrangler isn’t exactly known for its fuel efficiency, but there are ways to stretch your gas dollar. Here are some tips on how you can save money at the pump:
- Maintain your car. A noticeable reduction in fuel efficiency is one of the signs that it might be time for an oil change.Regular maintenanceandoil changescan go a long way to saving you money.
- Ease off the gas. Gas burns faster at higher RPMs. You can save gas by accelerating more gradually.
- Don’t let your car run idly. Warming up your car in the winter wastes gas. You can save hundreds each winter by just wearing some mittens and letting your car’s interior warm up as you drive.
How to optimize your Wrangler’s insurance coverage
Keeping up with regular maintenance is one way to keep your cost of ownership down. Another way is to get cheap car insurance with the
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