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2019 Subaru Legacy Gas Tank Size & Fuel Capacity

Sedan 5 trims listed 2 fuel-system recalls ← 2018 2020 →

Fuel tank capacity

18.5gal · 70 L

The 2019 Subaru Legacy has a fuel tank capacity of 18.5 gallons (70 liters) on every trim.

A full tank is good for roughly 518–629 highway miles or 370–463 miles around town, going by the EPA ratings.

18.5 gal · Bigger than 54% of 2019 models we list.

Highway range
518–629 mi
City range
370–463 mi
Fuel
Regular unleaded
EPA combined
23–29 MPG
EPA size class
Midsize Cars

2019 Subaru Legacy fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Engine
no difference

All 5 trims

MPG and range are city / highway.

TrimEngineDrive Tank MPG city / hwy Range city / hwy
2.5i 4dr Sedan AWD 2.5L 4cyl CVT · AWD MPG 25 / 34Range 463 / 629 mi 2.5L 4cyl CVT AWD 18.5 gal70 L 25 / 34 463 / 629 mi
2.5i Limited 4dr Sedan AWD 2.5L 4cyl CVT · AWD MPG 25 / 34Range 463 / 629 mi 2.5L 4cyl CVT AWD 18.5 gal70 L 25 / 34 463 / 629 mi
2.5i Premium 4dr Sedan AWD 2.5L 4cyl CVT · AWD MPG 25 / 34Range 463 / 629 mi 2.5L 4cyl CVT AWD 18.5 gal70 L 25 / 34 463 / 629 mi
2.5i Sport 4dr Sedan AWD 2.5L 4cyl CVT · AWD MPG 25 / 34Range 463 / 629 mi 2.5L 4cyl CVT AWD 18.5 gal70 L 25 / 34 463 / 629 mi
3.6R Limited 4dr Sedan AWD 3.6L 6cyl CVT · AWD MPG 20 / 28Range 370 / 518 mi 3.6L 6cyl CVT AWD 18.5 gal70 L 20 / 28 370 / 518 mi

Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.

How far a 2019 Subaru Legacy goes on a tank

Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 29 MPG, a full 18.5-gallon tank covers about 537 miles.

GaugeGallonsHighway milesCity miles
Full18.5629463
3/413.9472347
1/29.3315231
1/44.6157116
1/82.37958

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 517 gallons, roughly 28 full tanks.

Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.

EPA combined
23–29 MPG
Tailpipe CO2
311–387 g/mi
EPA greenhouse score
5–6 of 10
Source
EPA ratings

What it costs to fill up a 2019 Subaru Legacy

$78.99 to fill the 18.5-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
18.5 galRegular$4.27$78.99$59.25

By region, 18.5-gallon tank

RegionRegular / galFill from empty
East Coast$4.02$74.37
Midwest$4.27$78.99
Gulf CoastLowest$3.70$68.45
Rocky Mountain$4.46$82.51
West Coast$5.42$100.27
CaliforniaHighest$5.89$108.96

Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.

Your own price

  • 18.5-gallon tank$78.99
  • A year of driving (15,000 mi)$2,209

Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.

Legacy tank size in other years

The 2019 Legacy uses the same 18.5 gal tank as every Legacy since 2010.

Model yearTankLongest highway range
2024 Legacy 18.5 gal 648 mi
2023 Legacy 18.5 gal 648 mi
2022 Legacy 18.5 gal 648 mi
2021 Legacy 18.5 gal 648 mi
2020 Legacy 18.5 gal 648 mi
2019 Legacy 18.5 gal 629 mi
2018 Legacy 18.5 gal 629 mi
2017 Legacy 18.5 gal 629 mi
2016 Legacy 18.5 gal 666 mi
2015 Legacy 18.5 gal 666 mi
2014 Legacy 18.5 gal 592 mi
Subaru Legacy fuel tank by model yearSmallest tank Larger tank options
199019911992199319941995199619971998199920002001200220032004200520062007200820092010201120122013201420152016201720182019202020212022202320242025
← 2018 Subaru Legacy Every Legacy year 2020 Subaru Legacy →

2019 Subaru Legacy vs similar 2019 sedans

The Legacy has the largest tank of the seven 2019 sedans compared here, 18.5 gallons against 18.0 for the Ford Fusion.

2019 modelTankLongest highway range
Subaru Legacy 18.5 gal 629 mi
Ford Fusion 16.5–18.0 gal 561 mi
Nissan Maxima 18.0 gal 540 mi
Mazda 6 16.4 gal 574 mi
Kia Optima Hybrid 15.9 gal 716 mi
Hyundai Sonata Hybrid 15.9 gal 731 mi
Toyota Camry Hybrid 13.0 gal 689 mi

Other 2019 sedans of a similar size, one model per brand.

2019 Subaru Legacy fuel system recalls

NHTSA lists 2 fuel-system recalls for the 2019 Subaru Legacy, out of 3 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Delivery · Fuel pumpJul 29, 2021 · NHTSA 21V587000 · Subaru Of America, Inc. · 175,968 vehicles

Subaru of America, Inc. (Subaru) is recalling certain 2019-2020 Ascent, 2018 Forester, 2018-2020 Impreza, Legacy, Outback, 2018-2019 BRZ, WRX, and Toyota 86 vehicles. The low-pressure fuel pump inside the fuel tank may fail.

Risk and remedy

Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.

Remedy: Dealers will replace the low-pressure fuel pump, free of charge. Owner notification letters were mailed September 24, 2021. Subaru and Toyota owners may call customer service at 1-844-373-6614. Subaru's number for this recall is WRG-21.

Delivery · Fuel pumpApr 16, 2020 · NHTSA 20V218000 · Subaru Of America, Inc. · 188,207 vehicles

Subaru of America, Inc. (Subaru) is recalling certain 2019 Impreza, Outback, Legacy, and Ascent vehicles. The low pressure fuel pump may become inoperative.

Risk and remedy

Risk: If the low pressure fuel pump fails, the engine may stall without the ability to restart the vehicle, increasing the risk of a crash.

Remedy: Subaru will notify owners, and dealers will replace the low pressure fuel pump, free of charge. The recall began June 4, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru's number for this recall is WRD-20.

All Subaru fuel recalls Look up your tank by VIN

Frequently asked questions

What is the fuel tank capacity of the 2019 Subaru Legacy?

The 2019 Subaru Legacy holds 18.5 gallons (70 liters) on every trim we list.

How many gallons and liters does the 2019 Subaru Legacy gas tank hold?

The 2019 Subaru Legacy tank holds 70 liters, or 18.5 gallons in US gallons.

How far can a 2019 Subaru Legacy go on a full tank?

About 518–629 miles on the highway and 370–463 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.

How many miles can a 2019 Subaru Legacy go on a quarter tank?

About 157 highway miles or 116 in town from the 18.5-gallon tank, which has roughly 4.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

What gas does the 2019 Subaru Legacy take?

Regular unleaded. The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2019 Subaru Legacy?

At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 18.5-gallon tank from empty costs $78.99. It ranges from $68.45 in the Gulf Coast to $108.96 in California.

How much does a full tank of gas weigh in a 2019 Subaru Legacy?

About 115 pounds for the 18.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Does the 2019 Subaru Legacy have a bigger gas tank than the Kia Optima Hybrid?

Yes. The 2019 Subaru Legacy holds up to 18.5 gallons; the 2019 Kia Optima Hybrid holds up to 15.9.

Has the 2019 Subaru Legacy had a fuel pump or fuel system recall?

Yes. NHTSA lists 2 fuel-system recalls for the 2019 Subaru Legacy: 21V587000 (delivery · fuel pump); 20V218000 (delivery · fuel pump). Check your VIN at nhtsa.gov/recalls to see if your car is affected.

Sources

  • Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
  • MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
  • Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
  • Recalls: NHTSA recall database (Subaru fuel system recalls).

Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.

Other 2019 Subaru models

Ascent19.3 gallons BRZ13.2 gallons Crosstrek13.2–16.6 gallons Forester16.6 gallons Impreza13.2 gallons Outback18.5 gallons STI S20915.9 gallons WRX15.9 gallons