2015 Jeep Wrangler Gas Tank Size

Depending on the trim level, your 2015 Jeep Wrangler has either an 18.6- or 22.5-gallon gas tank.
Written by Mary Alice Morris
Reviewed by Kathleen Flear
background
The 2015 Jeep Wrangler has just one engine configuration—a 3.6-liter V6—and one 6-speed manual drivetrain. Despite that simplicity, the 2015 model has 17 variations between its trim levels and special editions. But between all 17 model types, you’ll have one of just two gas tank sizes—a 22.5-gallon tank, or an 18.6-gallon tank. 
Picking out the right Jeep Wrangler, with all its options and editions, can be a dizzying process, and if you’ve purchased a 2015 model that doesn’t have the owner’s manual with it, you might have missed the vehicle’s gas tank size. That’s why
Jerry
, the
car insurance
comparison shopping licensed broker app, has this easy guide to figuring out your 2015 Jeep Wrangler fuel tank capacity. 
Stick around till the end—we'll even help you lower your
Jeep Wrangler insurance cost
.

How big is the gas tank on a 2015 Jeep Wrangler?

With so much consistency across the 2015 Jeep Wrangler’s models, you may be wondering why the brand bothered with two sizes of gas tanks. There’s actually a pretty simple explanation—some Jeep Wranglers are just bigger than others. 
The Unlimited edition of any Wrangler trim is going to be a four-door version of the SUV, which usually has just two doors. That means they’re bigger, longer, and heavier, and will need more gas in the tank to achieve the same range as the smaller Wranglers. Also, the larger size means there’s just more room for a bigger gas tank
To help clarify what models got which tank, here’s a table of each
trim level
and its gas tank size:
Model
Fuel tank size
Rubicon Hard Rock
18.6 gallons
Unlimited Rubicon Hard Rock
22.5 gallons
X
18.6 gallons
Unlimited X
22.5 gallons
Altitude Edition
18.6 gallons
Unlimited Altitude Edition
22.5 gallons
Rubicon
18.6 gallons
Unlimited Rubicon
22.5 gallons
Sahara
18.6 gallons
Unlimited Sahara
22.5 gallons
Freedom
18.6 gallons
Unlimited Freedom
22.5 gallons
Unlimited Sport RHD
22.5 gallons
Willy’s Wheeler
18.6 gallons
Unlimited Willys Wheeler
22.5 gallons
Sport
18.6 gallons
Unlimited Sport
22.5 gallons
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How to check your 2015 Jeep Wrangler’s gas tank size

If you’re not convinced by these numbers, you can always check your 2015 Jeep Wrangler fuel tank capacity for yourself. Here are a few methods that will work:

Measure the gas tank

Gather a measuring tape, something to write with, some paper, and a calculator. Then, get underneath your Jeep and jot down the gas tank’s width, length, and height in inches. Multiply these measurements together, and then divide the total by 231—the number of cubic inches per gallon—to find the tank’s fuel capacity.

Check your owner’s manual

Checking your owner’s manual only works if you can find it. Luckily, if the hard copy is lost, you can find a
PDF version
pretty easily online. 

Drive till empty, then fill it up

It’s a little rudimentary, but it’ll work. You can drive your Jeep Wrangler until the fuel indicator is down to the E line, and then fill up the gas tank. The number of gallons you have to buy should tell you the total capacity your Jeep can hold. 

How to save on fuel costs in a Jeep Wrangler

We know that people don’t buy Jeep Wranglers with fuel efficiency at the forefront of the mind. It’s a recreational vehicle made for off-roading and exploration. That said, if your Wrangler is doing double-duty as a daily driver, you can apply some techniques to save on fuel expenses. Here are our recommendations:
  • Keep a good
    maintenance schedule
    . Staying on top of regular
    oil changes
    and tire rotations will help your Wrangler achieve its maximum fuel economy.
  • Drive slowly when you can. Staying at the speed limit and coasting to a stop instead of braking are easy ways to cut gas consumption. 
  • Don’t sit idle. If you’ve parked, go ahead and shut off the engine. Sitting idle will just waste gas. 

How to optimize your Wrangler’s insurance coverage

One downside to the Jeep Wrangler is that, like other off-road capable vehicles,
Jeep insurance rates
tend to be more expensive than that of regular old commuter cars. But that doesn’t mean you have to overpay for your coverage. You can easily comparison shop different policies and find savings by using the
Jerry
app. 
Jerry is a licensed insurance broker that makes finding and buying high-quality, low-cost
car insurance
super easy. Just download the app, answer some basic questions about yourself and your car, and let Jerry handle all the legwork that goes into chasing down good insurance policies. 
You can buy your new policy right through the Jerry app, and they’ll even help you cancel your old policy!
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