The fuel tank capacity of a Porsche Cayenne varies according to the engine, year model, and trim. That being said, most Cayennes have a gas tank size of either 23.4 gallons or 26.4 gallons.

When you’re driving to the gas station, you can’t calculate how much you’ll be spending if you don’t know how much fuel your vehicle needs. You can consult your owner’s manual to find out—but if it’s nowhere to be found,

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How big is the gas tank on a Porsche Cayenne?

The Cayenne SUV has risen in popularity in recent years, becoming Porsche’s best-selling vehicle across the globe. Debuting in 2002, you can imagine there have been quite a few variations in the Cayenne over the years—including the gas tank size.

Even in the 2022 Cayenne, there are two gas tank sizes between all four powertrains. Here’s a look at the fuel tank capacity for each 2022 Cayenne engine:

2.9-liter V6: 23.7 gallons

3.0-liter V6: 23.7 gallons

3.0-liter hybrid: 19.8 gallons

4.0-liter V8: 23.7 gallons

4.0-liter V8 hybrid: 19.8 gallons

Past models of the Cayenne have fuel capacities of between 19.8 and 26.4 gallons, but they’re generally the same throughout generations. Here’s what you can expect from each one:

Porsche Cayenne generation	Gas tank capacity (gallons)
First generation (2003–2010)	26.2; 26.4
Second generation (2011–2018)	21.1; 22.4; 26.4
Third generation (2019–present)	19.8; 23.7

How to check your Porsche Cayenne’s gas tank size

If you’re still unclear on how much gas your specific Cayenne can hold, here are three ways to figure out this number for yourself:

Check your owner’s manual

The easiest and most trustworthy way to determine your gas tank size is to check your owner’s manual. Just skim the index or table of contents for “fuel tank” and you’ll find the magic number.

Measure the gas tank

Don’t have your owner’s manual on hand? You can still figure out your gas tank capacity with a simple tape measure and a calculator. Follow this formula:

Measure your tank’s width, length, and height in inches.

Multiply all three numbers.

Divide that answer by 231 to get your gas tank capacity in gallons.

Drive till empty, then fill it up

This method requires no extra tools or time—but it does require some careful planning. All you have to do is drive your Cayenne until your fuel gauge hits “E”—almost empty, but not quite. Get yourself to a gas pump and fill your tank, keeping an eye on how many gallons it takes.

This isn’t the most accurate measurement, but it gives you a general idea. Just be sure you don’t drive long with your gas light on!

MORE:

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

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How to save on fuel costs in a Porsche Cayenne

The gas-powered 2022 Cayenne engines get an EPA-estimated 14 to 17 combined mpg, depending on which powertrain you’re driving. For better fuel economy, the plug-in hybrid Cayenne earns a 46 MPGe when running on gas and electricity.

The Cayenne may not be the most fuel-efficient vehicle on the road, but there are still a few ways you can cut your costs at the pump:

Stay on top of maintenance. Routine upkeep is the only way to prevent wear and tear on your Cayenne’s engine—which will also keep your fuel economy in good shape.

Drive with care. Quick acceleration and regular speeding will cause your fuel economy to dip.

Say no to idling. Letting your car idle while it warms up in the winter may be the go-to method, but this burns up unnecessary gas. Just drive your vehicle gently to warm it up instead.

How to optimize your Cayenne’s insurance coverage

If you’re driving a Porsche Cayenne, your

car expenses

will cost you a pretty penny. Finding a cheaper

Porsche car insurance

policy could go a long way in lowering your costs—and

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