2008 Subaru Outback Gas Tank Size & Fuel Capacity

Fuel tank capacity

16.9gal · 64 L

The 2008 Subaru Outback has a fuel tank capacity of 16.9 gallons (64 liters) on every trim.

A full tank is good for roughly 406–439 highway miles or 287–338 miles around town, going by the EPA ratings.

16.9 gal · Smaller than 73% of 2008 models we list.

Highway range
406–439 mi
City range
287–338 mi
Fuel
Regular unleaded
EPA combined
20–22 MPG
EPA size class
Sport Utility Vehicle

2008 Subaru Outback fuel tank capacity by trim

What changes the tank sizeTap an option to filter the table

Engine
no difference

All 15 trims

MPG and range are city / highway.

TrimEngineDrive Tank Fuel MPG city / hwy Range city / hwy
2.5 XT Limited 4dr Wagon AWD w/Nav, VDC 2.5L 4cyl Turbo 5A · AWD · Premium (required) MPG 18 / 24Range 304 / 406 mi 2.5L 4cyl Turbo 5A AWD 16.9 gal64 L Premiumrequired 18 / 24 304 / 406 mi
2.5 XT Limited 4dr Wagon AWD w/VDC 2.5L 4cyl Turbo 5A · AWD · Premium (required) MPG 18 / 24Range 304 / 406 mi 2.5L 4cyl Turbo 5A AWD 16.9 gal64 L Premiumrequired 18 / 24 304 / 406 mi
2.5 XT Limited 4dr Wagon AWD w/VDC 2.5L 4cyl Turbo 5M · AWD · Premium (required) MPG 18 / 24Range 304 / 406 mi 2.5L 4cyl Turbo 5M AWD 16.9 gal64 L Premiumrequired 18 / 24 304 / 406 mi
2.5I 4dr Wagon AWD 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
2.5I 4dr Wagon AWD 2.5L 4cyl 5M · AWD · Regular MPG 19 / 26Range 321 / 439 mi 2.5L 4cyl 5M AWD 16.9 gal64 L Regular 19 / 26 321 / 439 mi
2.5I L.L.Bean Edition 4dr Wagon AWD w/Nav 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
2.5I L.L.Bean Edition 4dr Wagon AWD w/Nav, VDC 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
2.5I Limited 4dr Wagon AWD 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
2.5I Limited 4dr Wagon AWD w/VDC 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
2.5I Ltd L.L.Bean Edition 4dr Wagon AWD w/Nav 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
2.5I Ltd L.L.Bean Edition 4dr Wagon AWD w/Nav, VDC 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
3.0 R L.L.Bean Edition 4dr Wagon AWD w/Nav, VDC 3.0L 6cyl 5A · AWD · Premium (required) MPG 17 / 24Range 287 / 406 mi 3.0L 6cyl 5A AWD 16.9 gal64 L Premiumrequired 17 / 24 287 / 406 mi
3.0 R L.L.Bean Edition 4dr Wagon AWD w/VDC 3.0L 6cyl 5A · AWD · Premium (required) MPG 17 / 24Range 287 / 406 mi 3.0L 6cyl 5A AWD 16.9 gal64 L Premiumrequired 17 / 24 287 / 406 mi
4dr Wagon AWD 2.5L 4cyl 4A · AWD · Regular MPG 20 / 26Range 338 / 439 mi 2.5L 4cyl 4A AWD 16.9 gal64 L Regular 20 / 26 338 / 439 mi
4dr Wagon AWD 2.5L 4cyl 5M · AWD · Regular MPG 19 / 26Range 321 / 439 mi 2.5L 4cyl 5M AWD 16.9 gal64 L Regular 19 / 26 321 / 439 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 2008 Subaru Outback 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 22 MPG, a full 16.9-gallon tank covers about 372 miles.

GaugeGallonsHighway milesCity miles
Full16.9439338
3/412.7330253
1/28.5220169
1/44.211085
1/82.15542

Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 682 gallons, roughly 40 full tanks.

In real driving: owners who log fill-ups at fueleconomy.gov average 23.7 MPG in the Outback (30 drivers), about 401 miles on a full 16.9-gallon tank.

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
20–22 MPG
Tailpipe CO2
404–444 g/mi
Source
EPA ratings

What it costs to fill up a 2008 Subaru Outback

$72.16 to fill the 16.9-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.

TankFuelUS avg / galFrom emptyFrom 1/4 tank
16.9 galRegular$4.27$72.16$54.12
16.9 galPremium$5.28$89.23$66.92

By region, 16.9-gallon tank

RegionRegular / galFill from empty
East Coast$4.02$67.94
Midwest$4.27$72.16
Gulf CoastLowest$3.70$62.53
Rocky Mountain$4.46$75.37
West Coast$5.42$91.60
CaliforniaHighest$5.89$99.54

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

  • 16.9-gallon tank$72.16
  • A year of driving (15,000 mi)$2,911

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

Outback tank size in other years

The 2008 Outback uses the same 16.9 gal tank as every Outback since 2000.

Model yearTankLongest highway range
2013 Outback 18.5 gal 555 mi
2012 Outback 18.5 gal 537 mi
2011 Outback 18.5 gal 537 mi
2010 Outback 18.5 gal 537 mi
2009 Outback 16.9 gal 456 mi
2008 Outback 16.9 gal 439 mi
2007 Outback 16.9 gal 439 mi
2006 Outback 16.9 gal 439 mi
2005 Outback 16.9 gal 439 mi
2004 Outback 16.9 gal 423 mi
2003 Outback 16.9 gal 439 mi
Subaru Outback fuel tank by model year

2008 Subaru Outback fuel system recalls

NHTSA lists 2 fuel-system recalls for the 2008 Subaru Outback, out of 8 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.

Service brakes, hydraulic · Foundation components · Hoses, lines/piping, and fittingsJun 10, 2014 · NHTSA 14V311000 · Subaru Of America, Inc. · 461,338 vehicles

Subaru of America, Inc. (Subaru) is recalling certain model year 2005-2009 Outback and Legacy, 2008-2011 Impreza and 2008-2014 Impreza WRX/STI, and 2009-2013 Forester vehicles, currently, or formerly, registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia. Salt water could splash on the brake lines through a gap in the fuel tank protector, resulting in excessive corrosion of the brake lines. Note that affected vehicles not currently, or formerly registered, in the salt belt states identified above are eligible for repair, at no cost to the customer, upon request.

Risk and remedy

Risk: Brake line corrosion may result in brake fluid leakage. Fluid leakage may result in longer distances being required to slow or stop the vehicle, increasing the risk of a crash.

Remedy: Subaru will notify owners, and dealers will test the brake system by depressing the brake pedal and inspecting for brake fluid leaks. If no brake fluid seepage is observed, the affected areas will be rustproofed with anti-corrosion wax. If brake fluid seepage is observed, the brake lines will be replaced followed by rustproofing with anti-corrosion wax. These services will be performed free of charge. The recall began July 2014 and second notifications will run through November 2014. Owners may contact Subaru at 1-800-782-2783. Subaru's recall campaign number is WQK-47. Note: This recall supersedes recall 13V-110 which applied to certain 2005-2009 Legacy/Outback vehicles. Vehicles that were remedied under the previous campaign still need additional areas rust-proofed.

Service brakes, hydraulic · Foundation components · Hoses, lines/piping, and fittingsMar 27, 2013 · NHTSA 13V110000 · Subaru Of America, Inc. · 274,402 vehicles

Subaru is recalling certain model year 2005-2009 Outback and Legacy vehicles manufactured from December 2003, through April 2009 and currently, or formerly, registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia. Salt water could splash on the brake lines through a gap in the fuel tank protector, resulting in excessive corrosion of the brake lines.

Risk and remedy

Risk: Brake line corrosion may result in brake fluid leakage. Fluid leakage may result in longer distances being required to slow or stop the vehicle, increasing the risk of a crash.

Remedy: Subaru will notify owners, and dealers will inspect the vehicles. If no brake fluid seepage is observed, the affected area will be rustproofed with anti-corrosion wax. If brake fluid seepage is observed, the brake lines will be replaced followed by rustproofing with anti-corrosion wax. These services will be performed free of charge. The recall began on May 30, 2013. Owners may contact Subaru at 1-800-782-2783. Subaru's recall campaign number is WQG-43.

All Subaru fuel recalls Look up your tank by VIN

Frequently asked questions

What is the fuel tank capacity of the 2008 Subaru Outback?

The 2008 Subaru Outback holds 16.9 gallons (64 liters) on every trim we list.

How many gallons and liters does the 2008 Subaru Outback gas tank hold?

The 2008 Subaru Outback tank holds 64 liters, or 16.9 gallons in US gallons.

How far can a 2008 Subaru Outback go on a full tank?

About 406–439 miles on the highway and 287–338 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 2008 Subaru Outback go on a quarter tank?

About 110 highway miles or 85 in town from the 16.9-gallon tank, which has roughly 4.2 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.

How many miles does a 2008 Subaru Outback really get on a tank?

Drivers who log their fill-ups at fueleconomy.gov average 23.7 MPG in the 2008 Subaru Outback (30 drivers), which works out to about 401 miles on a full 16.9-gallon tank.

What gas does the 2008 Subaru Outback take?

Regular unleaded, or Premium unleaded (required), depending on the engine. The label inside the fuel door confirms it for your car.

How much does it cost to fill up a 2008 Subaru Outback?

At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 16.9-gallon tank from empty costs $72.16. It ranges from $62.53 in the Gulf Coast to $99.54 in California.

How much does a full tank of gas weigh in a 2008 Subaru Outback?

About 105 pounds for the 16.9-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.

Has the 2008 Subaru Outback had a fuel pump or fuel system recall?

Yes. NHTSA lists 2 fuel-system recalls for the 2008 Subaru Outback: 14V311000 (service brakes, hydraulic · foundation components · hoses, lines/piping, and fittings); 13V110000 (service brakes, hydraulic · foundation components · hoses, lines/piping, and fittings). 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).
  • Real-world MPG: driver-reported fill-ups shared at fueleconomy.gov (My MPG).

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

Other 2008 Subaru models