2026 Subaru Outback Gas Tank Size and Capacity
Fuel tank capacity
18.0gal · 68 L
The 2026 Subaru Outback has a fuel tank capacity of 18.0 gallons (68 liters) on every trim.
A full tank is good for roughly 486–558 highway miles or 378–450 miles around town, going by the EPA ratings.
18.0 gal · Bigger than 53% of 2026 models we list.
2026 Subaru Outback fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Engine
- no difference
All 6 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| Limited 4dr SUV AWD 2.5L 4cyl CVT · AWD MPG 25 / 31Range 450 / 558 mi | 2.5L 4cyl CVT | AWD | 18.0 gal68 L | 25 / 31 | 450 / 558 mi | |
| Limited XT 4dr SUV AWD 2.4L 4cyl Turbo CVT · AWD MPG 21 / 29Range 378 / 522 mi | 2.4L 4cyl Turbo CVT | AWD | 18.0 gal68 L | 21 / 29 | 378 / 522 mi | |
| Premium 4dr SUV AWD 2.5L 4cyl CVT · AWD MPG 25 / 31Range 450 / 558 mi | 2.5L 4cyl CVT | AWD | 18.0 gal68 L | 25 / 31 | 450 / 558 mi | |
| Touring 4dr SUV AWD 2.5L 4cyl CVT · AWD MPG 25 / 31Range 450 / 558 mi | 2.5L 4cyl CVT | AWD | 18.0 gal68 L | 25 / 31 | 450 / 558 mi | |
| Touring XT 4dr SUV AWD 2.4L 4cyl Turbo CVT · AWD MPG 21 / 29Range 378 / 522 mi | 2.4L 4cyl Turbo CVT | AWD | 18.0 gal68 L | 21 / 29 | 378 / 522 mi | |
| Wilderness 4dr SUV AWD 2.4L 4cyl Turbo CVT · AWD MPG 21 / 27Range 378 / 486 mi | 2.4L 4cyl Turbo CVT | AWD | 18.0 gal68 L | 21 / 27 | 378 / 486 mi | |
| No trim matches all of these filters. | ||||||
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 2026 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 27 MPG, a full 18.0-gallon tank covers about 486 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.0 | 558 | 450 |
| 3/4 | 13.5 | 419 | 338 |
| 1/2 | 9.0 | 279 | 225 |
| 1/4 | 4.5 | 140 | 113 |
| 1/8 | 2.3 | 70 | 56 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 556 gallons, roughly 31 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
- 23–27 MPG
- Tailpipe CO2
- 330–385 g/mi
- EPA greenhouse score
- 5 of 10
- Source
- EPA ratings ↗
What it costs to fill up a 2026 Subaru Outback
$76.86 to fill the 18.0-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 18.0 gal | Regular | $4.27 | $76.86 | $57.64 |
By region, 18.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $72.36 |
| Midwest | $4.27 | $76.86 |
| Gulf CoastLowest | $3.70 | $66.60 |
| Rocky Mountain | $4.46 | $80.28 |
| West Coast | $5.42 | $97.56 |
| CaliforniaHighest | $5.89 | $106.02 |
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
- 18.0-gallon tank$76.86
- A year of driving (15,000 mi)$2,372
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 tank changed for 2026: 18.0 gal, down from 18.5 gal on the 2025 Outback.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2026 Outback | 18.0 gal | 558 mi |
| 2025 Outback | 18.5 gal | 592 mi |
| 2024 Outback | 18.5 gal | 592 mi |
| 2023 Outback | 18.5 gal | 592 mi |
| 2022 Outback | 18.5 gal | 611 mi |
| 2021 Outback | 18.5 gal | 611 mi |
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2017
- 2016
- 2015
- 2014
- 2013
- 2012
- 2011
- 2010
- 2009
- 2008
- 2007
- 2006
- 2005
- 2004
- 2003
- 2002
- 2001
- 2000
2026 Subaru Outback vs similar 2026 SUVs
At 18.0 gallons, the Outback's largest tank ranks second of the seven 2026 SUVs compared here. The Chevrolet Blazer carries the most (21.7 gal) and the Kia Sportage Hybrid the least (13.7 gal).
| 2026 model | Tank | Longest highway range |
|---|---|---|
| Chevrolet Blazer | 19.4–21.7 gal | 586 mi |
| Subaru Outback | 18.0 gal | 558 mi |
| Buick Envision | 16.1 gal | 451 mi |
| Mazda CX-50 | 14.5–15.9 gal | 537 mi |
| Volkswagen Tiguan | 14.5–15.6 gal | 493 mi |
| Mitsubishi Outlander | 14.5 gal | 450 mi |
| Kia Sportage Hybrid | 13.7 gal | 603 mi |
Picked by body style and size: other 2026 SUVs within about 5% of the Outback's length and 15% of its curb weight, one model per brand.
Frequently asked questions
What is the fuel tank capacity of the 2026 Subaru Outback?
The 2026 Subaru Outback holds 18.0 gallons (68 liters) on every trim we list.
How many gallons and liters does the 2026 Subaru Outback gas tank hold?
The 2026 Subaru Outback tank holds 68 liters, or 18.0 gallons in US gallons.
How far can a 2026 Subaru Outback go on a full tank?
About 486–558 miles on the highway and 378–450 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 2026 Subaru Outback go on a quarter tank?
About 140 highway miles or 113 in town from the 18.0-gallon tank, which has roughly 4.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2026 Subaru Outback take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2026 Subaru Outback?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 18.0-gallon tank from empty costs $76.86. It ranges from $66.60 in the Gulf Coast to $106.02 in California.
How much does a full tank of gas weigh in a 2026 Subaru Outback?
About 112 pounds for the 18.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2026 Subaru Outback have a bigger gas tank than the Mazda CX-50?
Yes. The 2026 Subaru Outback holds up to 18.0 gallons; the 2026 Mazda CX-50 holds up to 15.9.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, cross-checked against a second spec database. 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.
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.