Across all trim levels of the 2021
Nissan Sentra, the fuel tank capacity is 12.4 gallons.
While it’s certainly helpful to know which side of your vehicle you can find the gas tank on, it’s also important to know how many gallons of fuel your tank can actually hold.
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How big is the gas tank on a 2021 Nissan Sentra?
As Nissan’s second-smallest sedan, the 2021 Nissan Sentra isn’t exactly a gas guzzler. In fact, the gas tank size on the 2021 Nissan Sentra is 12.4 gallons or 47 liters across all trims: the S CVT, SR CVT, and SV SVT.
How to check your 2021 Nissan Sentra’s gas tank size
If you’d like to check the fuel tank capacity on your Sentra yourself, you can do so in a few simple steps.
Measure the gas tank
To find the volume of your tank, you’ll need a measuring tape and some basic math skills. Start by measuring the width, length, and height of your tank and multiply the three numbers together.
Next, divide the result by 231—the number of cubic inches in a gallon—and you have your gas tank size.
Check your owner’s manual
A failsafe method of checking your vehicle specs? Your vehicle’s owner’s manual.
When scanning the pages in your manual, the number you’re looking for will show up under “fuel tank capacity” or another similar phrase.
Drive till empty, then fill it up
If testing the limits is your preferred method of measurement, you can find out your Sentra’s fuel tank capacity by driving your vehicle until you’re running on “E”.
While this might not give you an exact measurement, you’ll have a good idea of the size of your tank and how long your Sentra can run. Just don't let your vehicle run on empty for too long!
How to save on fuel costs in a Nissan Sentra
The regular gasoline engine and front-wheel drivetrain in the 2021 Nissan Sentra give the sedan a 33 mpg combined city/highway rating.
While the Sentra doesn’t guzzle gas like some of its counterparts on the road, it doesn't hurt to save on fuel costs where you can.
To improve your fuel efficiency and cut your fuel costs, follow these tips:
Regular maintenance. Keeping up with your Nissan’s maintenance will ensure your fuel economy remains consistent.
Drive intentionally. Avoid unnecessary, harsh accelerations and maintain a steady speed on the road.
Avoid long periods of idling. Idling guzzles gas up, so avoid letting your Sentra run in cold weather. Instead, drive your Sentra to gently warm it up.
How to optimize your Sentra’s insurance coverage
Driving a fuel-efficient vehicle like the 2021 Nissan Sentra will save you money down the line from expensive refueling, but it’s not the only way to save money on your vehicle.
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