Subaru Legacy Gas Tank Size

Good drivers deserve even better coverage. Let Jerry compare the best rates and coverage so you don't have to worry about car insurance ever again.
No long forms · No spam · No fees
Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.
The Subaru Legacy has a gas tank capacity anywhere from 15.9 to 19.2 gallons depending on the model. 
Knowing all there is to know about your car is a good way to take care of it—especially when it comes to its gas tank capacity. Your Subaru Legacy owner’s manual will list its fuel capacity, but if you’ve misplaced it, you’re in the right spot.
, the
car insurance
comparison shopping app, is here with all the details about your Subaru Legacy’s gas tank size.
We'll even show you the easiest way to save on your
Subaru Legacy insurance costs.
Are you overpaying for car insurance?
Compare and find out in 45 seconds.
Find Savings!
No long forms. No spam calls. Free Quotes.
4.7/5 App Store Rating, 8,100+ Reviews
Trusted by 1.5+ Million Customers.
rating primary

How big is the gas tank on a Subaru Legacy?

The Subaru Legacy has been on the road since 1990, and that long of a…well, legacy, is bound to come with variation—and that includes its gas tank size. While the current model of the Legacy holds 19.2 gallons, that hasn’t always been the case. Here’s the gas tank size for each model year of the Legacy.
Year model
Gas tank capacity
15.9 gallons
16.9 gallons
18.5 gallons
19.2 gallons

How to check your Subaru Legacy’s gas tank size

Uncertain about your Legacy’s actual fuel capacity? Here are some easy ways to find out the size for yourself. 

Measure the gas tank

Don’t worry, you don’t need any fancy formulas from high school for this one. Just grab a calculator and a tape measure, then multiply the width, length, and height of your tank in inches. Divide this number by 231 (the number of cubic inches in a gallon) to figure out your tank’s gas capacity in gallons. 

Check your owner’s manual

If you’re fresh out of tape measures, you can always grab your Legacy owner’s manual to check out your gas tank capacity. Turn to the table of contents or index and search for “fuel tank capacity” or something similar. 

Drive till empty, then fill it up

If you aren’t concerned about having the precise number, just drive your Legacy until your fuel gauge hits “E,” then head to the gas station to fill it back up. Keep an eye on the pump to get a general idea of your fuel capacity. Be sure you aren’t driving too far with an empty tank, though! 
Compare auto insurance policies
No spam or unwanted phone calls · No long forms · No fees, ever

How to save on fuel costs in a Subaru Legacy

According to EPA estimates, the 2022 Subaru Legacy earns a combined 30 mpg, but this varies pretty drastically depending on your specific model and year. If you’re really looking to save money on gas, consider switching to the
Subaru Crosstrek
Hybrid model, which earns 35 mpg combined
There are easier ways to cut back on your fuel costs without buying a whole new car, though. Here are the simplest tricks to reduce your fuel consumption: 
  • Stay on top of maintenance. Keeping up with your Legacy’s routine maintenance schedule is the best way to preserve your engine’s health and fuel economy. 
  • Drive with caution. We’re all guilty of gunning it every once in a while, but it’s best to avoid quick acceleration and sudden braking to conserve your gas. 
  • Don’t idle, especially in the winter. Drive your Legacy gently to warm it up instead of letting it run on those chilly mornings. 

How to optimize your Legacy’s insurance coverage

Being more mindful of your fuel consumption is a good way to reduce your car-related expenses, but you could cut down your Subaru Legacy insurance costs with just a few taps of your thumb. How? Just download the
app to shop for a brand-new car insurance policy. 
As the top-rated insurance app and a
licensed broker
, Jerry searches through more than 55 companies to bring you quotes tailored to your specific needs—all in a matter of 45 seconds or less. There’s no catch! Simply signing up for a new policy with Jerry saves the average customer over $800 a year.  
“After signing up with
, I went from $199/month to $97/month for my car insurance. My 2019 Subaru Forester now has full coverage for a great price!” —Rhonda H.

Easiest way to compare and buy car insurance

No long forms
No spam or unwanted phone calls
Quotes from top insurance companies
Find insurance savings — it's 100% free