2022 Toyota Sienna Gas Tank Size

The 2022 Toyota Sienna has an 18-gallon gas tank.
Written by Amber Reed
Reviewed by Kathleen Flear
The 2022 Toyota Sienna has an 18-gallon gas tank.
With seating for up to eight people and generous cargo space, the Toyota Sienna is a great family hauler, but its hybrid powertrain and above-average fuel economy set it apart from other minivans and similarly-sized SUVs. As gas prices continue to soar in 2022, knowing your vehicle’s fuel capacity can help you stay on top of your monthly budget, even if you drive an eco-friendly hybrid like the Sienna.
Here to teach you how to find your car’s fuel capacity is
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Toyota Sienna insurance costs
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How big is the gas tank on a 2022 Toyota Sienna?

The 2022 Toyota Sienna holds 18 gallons of fuel.
Available in six trims — LE, XLE, XSE, Woodland Edition, Limited, and Platinum — the 2022 Sienna has a lot to offer. The base model is an excellent daily driver, while the Woodland Edition offers some off-road features for weekend camping adventures, and the fully-loaded Platinum adds premium cabin comforts. While some vehicles have different fuel tanks depending on their trim level or engine type, every 2022 Sienna is fitted with a tank that holds exactly 18 gallons of gas.

How to check your 2022 Toyota Sienna’s gas tank size

Want to learn how to find your car’s gas capacity on your own? Here’s what you should do.

Measure the gas tank

If you don’t mind getting under your car, you can find your fuel capacity by taking measurements and doing some simple math. First, grab a ruler and a calculator, then follow these steps:
  • Locate your car’s gas tank.
  • Measure its width, length, and height.
  • Multiply those numbers together.
  • Divide the result by 231 (the number of cubic inches in a gallon) to get your car’s gas capacity.

Check your owner’s manual

The most straightforward way to find your car’s fuel capacity is by looking it up in your owner’s manual. All manuals include a specifications list, which will have information on your car’s fuel tank and capacity. If you can’t find your owner’s manual, you can
download it online

Drive till empty, then fill it up

If you don’t need a precise number, you can get your car’s fuel capacity simply by driving until your fuel gauge is empty and then filling up your car. When you go to the gas station, top off your tank, and watch the meter on the fuel pump to see how many gallons of gas it took to refill your car. 

How to save on fuel costs with a 2022 Toyota Sienna

The 2022 Toyota Sienna has an EPA-estimated fuel economy of 36 miles per gallon. That’s better than a lot of similarly-sized vehicles, but with gas prices hitting four or even five dollars per gallon in some areas, conserving fuel is more important now than it’s ever been. 
If you’re trying to reduce your car-related expenses, you can start by driving less or using a gas app to search for cheap stations. But here are a few other ways you can try to lower your car’s fuel consumption:
  • Properly maintain your car
    . Things like dirty oil, poorly aligned tires, or an untuned engine all contribute to lower fuel efficiency.
  • Don’t speed or slam on your brakes. In general, aggressive driving often leads to higher fuel consumption.
  • Try not to idle. If you leave your engine running while you're not driving, your car consumes gas for no reason.

How to optimize your 2022 Toyota Sienna insurance coverage

If you’re trying to reduce your car-related expenses, look into optimizing your
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