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How many gallons of gas does a Subaru Legacy hold?

The Subaru Legacy typically holds about 16.9 gallons (64 liters) of fuel in its tank. Exact capacity can vary slightly by model year and trim.


Fuel-tank size is a key factor in range estimates and fuel economy planning. Subaru has kept the Legacy’s tank size fairly consistent across recent generations, but there can be small differences based on year, drivetrain, and emissions equipment. For the most precise figure, consult your vehicle’s owner's manual or the official specification sheet for your exact year and trim.


Tank capacity overview


Below is a concise guide to the capacity you’re most likely to encounter on a Subaru Legacy. Please note that exact figures can vary by year and market, so always verify for your specific vehicle.


Model-year and trim differences



    Before listing, this paragraph explains what you’re about to see in the following bullets: the vast majority of Legacy sedans use a 16.9-gallon (64 L) tank in recent years, with minor year-to-year variances kept to a minimum.


  • Most recent and widely sold Legacy models: 16.9 gallons (64 liters).

  • Older generations generally show the same ballpark figure, with only small, year-specific variances based on equipment and market.


For practical purposes, plan on about 16.9 gallons when calculating range and refill intervals. If you own an older or special-edition Legacy, double-check the exact specification in the owner’s manual or Subaru’s official data for your year/trim.


How to confirm your exact capacity



  • Check the owner’s manual under specifications for the fuel tank capacity.

  • Look at the specifications placard inside the driver’s door jamb for your exact year/trim pairing.

  • Visit Subaru’s official website or contact a dealer with your VIN to obtain the precise figure for your vehicle.


Knowing the exact capacity helps with accurate range estimates and service planning, especially if you’re comparing fuel economy across different trims or generations.


Summary


In most Subaru Legacy models, the gas tank holds 16.9 gallons. While this figure covers the majority of recent models, always verify for your specific year and trim to be completely precise.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.