2021 Honda Insight Gas Tank Size

The 2021 Honda Insight is a gas-electric hybrid with a 10.6-gallon tank on all trims.
Written by Jason Tushinski
Reviewed by Kathleen Flear
The 2021 Honda Insight is a gas-electric hybrid sporting a 10.6-gallon fuel tank across all trims—the LX, EX, and Touring.
As an environmentally-friendly vehicle, the 2021 Honda Insight should save you money on gas. But when it does come time to fill up the tank, it’s important to know just how much fuel your Honda can hold. Have no fear—
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How big is the gas tank on a 2021 Honda Insight?

The gas tank on your 2021 Honda Insight holds 10.6 gallons of fuel. It holds a less-than-average amount because this vehicle is a hybrid.

How to check your 2021 Honda Insight gas tank size

If you want to double-check your Honda Insight’s fuel capacity, there are a few other foolproof ways of figuring this out.

Check your owner’s manual

There’s a reason Honda stuffs a giant owner’s manual in each vehicle’s glovebox—it contains all sorts of useful information, including your fuel tank capacity! Just look for a phrase such as fuel tank capacity in the index or glossary, and you should be good to go!

Measure the gas tank yourself

Grab a tape measure and a calculator. Measure and multiply the tank’s length, width, and height, then divide that number by 231, which is the number of cubic inches in one gallon. Once you’ve done that, you’ve figured out your gas tank capacity!

Drive till empty, then fill it up

You can always try the oldest trick in the book—drive your Insight until your gas gauge lands on E (for empty) and your
fuel warning light turns on
. Now, head to your nearest gas station and fill ’er up. The amount of gas you put into the tank won’t be an exact measure of your tank’s capacity, but it will be an accurate approximation of your tank’s capacity. For these purposes, that’s good enough.
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How to save on fuel costs in a Honda Insight

The 2021 Honda Insight is very fuel efficient—both the
LX
and
EX
trims boast fuel efficiency ratings of 55/49/52 mpg (city/highway/combined). The top-trim
Touring
is slightly less efficient but still boasts outstanding fuel economy, scoring a rating of 51/45/48 mpg (city/highway/combined). 
Still, even with such great efficiency figures, you can stretch your Insight’s fuel economy even more by heeding the following tips:
  • Keep up with maintenance: Bringing your Insight in for
    regular maintenance
    appointments is key to keeping it in good shape, and it ensures its fuel economy remains top-notch.
  • Drive carefully: Driving smoothly and safely is one of the best things you can do to keep your Insight’s fuel efficiency from slipping—avoid
    aggressive driving
    and try to avoid sudden acceleration and sudden braking.
  • Avoid idling, especially during the winter: Idling in order to warm your car up does one thing—waste gas. You need no more than one minute of idling to warm up your car. After this minute, start gently driving and your car will warm up in no time.

How to optimize your Honda Insight insurance coverage

While figuring out your car’s fuel tank capacity might be a pain, finding a great deal on your
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