Your 2021 Hyundai Elantra’s powertrain determines its gas tank size. A standard gas powertrain Elantra gives you 12.4 gallons while a hybrid powertrain provides an 11-gallon tank.
You’ll want to be prepared for the bill when you pull up to the gas pump, but how can you know what to expect if you don’t know your gas tank size? You can check your owner’s manual for this information, but you’ll have a hard time if the manual is long gone or damaged.
How big is the gas tank on a 2021 Hyundai Elantra?
If you have the standard gasoline engine on your 2021 Hyundai Elantra, your gas tank capacity is 12.4 gallons. If you opted for the Earth-friendly hybrid powertrain, your gas tank can hold 11 gallons. This is true throughout the trim levels for each powertrain, too.
As a compact sedan, the Hyundai Elantra doesn’t need a ton of gas to power it. With great fuel efficiency, you’ll need even less gas than you would when compared to a hulking SUV or even a vehicle with AWD.
How to check your 2021 Hyundai Elantra’s gas tank size
If you want to double-check our specs, you can figure out the 2021 Hyundai Elantra gas tank size yourself. There are a few options for finding this information.
Measure the gas tank
Enjoy tools and math? Use your geometry skills to get the 2021 Hyundai Elantra’s gas tank size with a measuring tape and calculator.
Find the gas tank and measure the width, length, and height. Multiply these numbers together and then divide this sum by 231, which is the number of cubic inches in a gallon. There’s your answer in gallons.
Check your owner’s manual
Dust off that owner’s manual to get the most accurate information on your 2021 Hyundai Elantra’s gas tank size. Check the index for a phrase like “fuel tank capacity” to find the right information.
Drive till empty, then fill it up
Don’t need a specific number or just want a general idea of the 2021 Hyundai Elantra gas tank size? Drive until your fuel gauge hits “E” and then get gas. This is an imprecise measurement, but you’ll be able to figure out your average fuel costs this way. Just be sure you don’t run out of gas too far from a gas station!
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How to save on fuel costs in a Hyundai Elantra
Fuel costs are a major factor in the ownership costs of any vehicle, and your mileage can greatly affect these. The gasoline Elantra gets 31 mpg city, 41 mpg highway, and 35 mpg combined. Not too bad! The hybrid engine has even better mileage with 49 mpg city, 52 mpg highway, and 50 mpg combined.
Whichever powertrain you chose, you’ll probably want to save as much as possible on fuel costs regardless. Check out these tips on saving on gas:
- Regular maintenance: Wear and tear can negatively impact your mileage over time. Stay on top of maintenance to avoid this.
- Don’t accelerate quickly: Driving slowly and avoiding quick accelerations can help your fuel economy.
- Avoid engine idling, especially in cold weather: It’s tempting to let your car come up to temperature on a cold morning, but doing so will kill your mileage.
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