2018 Subaru Outback AWDFuel Economy & MPG Ratings
Gasoline Small Sport Utility Vehicle 4WDAll-Wheel Drive
City
25
MPG
Highway
32
MPG
Combined
28
MPG
Real-World MPG
Based on 6 owner reports via EPA fueleconomy.gov
22.7MPG average-18.8% vs EPA label
EPA combined: 28 MPG · Owner reported avg: 22.7 MPG
Range: 19–25 MPG
Driving mix: City 55% / Highway 45%
Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.
Owner reported MPG for this vehicle averages 22.7 real world MPG based on 6 owner reports. EPA combined rating is 28 MPG.
Trim Comparison
Automatic (AV-S7)
Regular
City
25
Hwy
32
Comb
28
Fuel cost: $2,400/yr
Automatic (AV-S6)
Regular
City
20
Hwy
27
Comb
22
Fuel cost: $3,050/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic (AV-S7) | Regular | 25 | 32 | 28 | $2,400 |
| Automatic (AV-S6) | Regular | 20 | 27 | 22 | $3,050 |
Annual Fuel Cost
$2,400
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$0
vs. average new vehicle
EPA Fuel Economy Score: 6/10
GHG Score: 6/10
Environment
- CO₂ Tailpipe Emissions
- 320 g/mile
- Annual Petroleum Consumption
- 10.6 barrels
Specifications
- Engine
- 3.6L 4-cyl
- Transmission
- Automatic
- Drivetrain
- AWD
- Body Style
- SUV/Crossover
- GVWR
- Class 1 (≤6,000 lbs)
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 2.5L, 4-cylinder
- Fuel Type
- Regular Gasoline
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$2,405/yr
California
$5.957/gal$3,191/yr
Texas
$3.888/gal$2,083/yr
Florida
$4.136/gal$2,216/yr
New York
$4.522/gal$2,423/yr
Ohio
$4.510/gal$2,416/yr
Washington
$5.591/gal$2,995/yr
Colorado
$4.618/gal$2,474/yr
Minnesota
$4.344/gal$2,327/yr
Massachusetts
$4.448/gal$2,383/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $2,405/yr | — |
| California | $5.957/gal | $3,191/yrHIGHEST | +$786 |
| Texas | $3.888/gal | $2,083/yrLOWEST | $-322 |
| Florida | $4.136/gal | $2,216/yr | $-189 |
| New York | $4.522/gal | $2,423/yr | +$18 |
| Ohio | $4.510/gal | $2,416/yr | +$11 |
| Washington | $5.591/gal | $2,995/yr | +$590 |
| Colorado | $4.618/gal | $2,474/yr | +$69 |
| Minnesota | $4.344/gal | $2,327/yr | $-78 |
| Massachusetts | $4.448/gal | $2,383/yr | $-22 |
Calculated at 15,000 miles/year (EPA standard assumption) using 28 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Subaru Outback AWD MPG History
See how this model's fuel economy changed by year