Across trims, the 2021 Hyundai Sonata has a gas tank size between 14.8 and 15.9 gallons. Only the SE 4-door sedan is at the low end with a capacity of 14.8 gallons.

Who really cares about the size of their car’s gas tank? Not enough drivers when you consider that understanding your gas tank size can help you maintain your car and lower your annual maintenance budget.

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How big is the gas tank on a 2021 Hyundai Sonata?

Trim level often dictates the fuel capacity of a vehicle. The 2021 Hyundai Sonata comes in these 4-door sedan

The fuel capacity only changes for the SE 4-door sedan. It offers 14.8 gallons whereas the others have 15.9 gallons. It might be a small difference but it is still a difference.

How to check your 2021 Hyundai Sonata gas tank size

There are three simple ways to measure your gas tank. Each requires minimal effort and not a ton of car knowledge, so don’t worry if you’re an inexperienced car owner.

Read your owner’s manual

We always recommend consulting your owner’s manual for any information about your vehicle. You should be able to find this information under “fuel tank capacity” or something along those lines.

Measure the tank

If you’ve lost your owner’s manual, you can measure your gas tank the old-fashioned way with a measuring tape and a calculator. Just follow these steps:

Measure the length, width, and height of your tank

Multiply these numbers

Divide that number by 231 to convert the measurement from cubic inches to gallons.

Drive till empty, then fill it up

This is the riskier option, but many car owners still turn to it to measure their gas tanks. Drive until your

gas gauge reads

gas gauge reads “empty”

Granted, this isn’t the most accurate method but it will give an idea of the size of your gas tank, in addition to how many gallons are required to go from an empty tank to a full one. Also remeber to be extremely careful; you don't want to

run out of gas

MORE:

How far can you drive on an empty tank of gas?

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How to save on fuel costs for a 2021 Hyundai Sonata

Even if you drive a vehicle with good gas mileage, like the 2021 Hyundai Sonata, you can still adopt some methods to increase your fuel efficiency and lower your annual fuel costs.

Use these tips to

save on fuel

for your 2021 Hyundai Sonata:

Care for your vehicle. Be prudent about caring for your vehicle and keep a

regular maitenance schedule

. A well-maintained vehicle will have better fuel economy.

Reduce idling time. Idling is a pointless driving habit. It’s terrible for the environment and wastes gas. Try to idle as infrequently as possible to save on fuel costs.

Drive cautiously. Driving carelessly won’t just make you a safer driver and reduce the odds of getting in a car accident—it will also increase your vehicle’s fuel economy. Try to drive without a lead foot and avoid abrupt acceleration.

How to optimize your 2021 Hyundai Sonata’s insurance coverage

Spending less on gas is always nice, but for some, it’s a necessity—especially with gas prices as high as they are. Every driver needs to learn that the real money, however, is in finding cheaper

car insurance

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