2025 head-to-head · Midsize Car

2025 Nissan Altima vs Subaru Legacy

MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.

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✓ Cheaper to run
$1,500/ year to fuel
31 MPG
✓ Cheaper to run
$1,550/ year to fuel
30 MPG

On fuel costs these two are nearly tied. Driving 15,000 miles a year with $3.10/gal regular gas, the most efficient 2025 Nissan Altima (31 MPG) costs about $1,500 a year to fuel and the 2025 Subaru Legacy (30 MPG) about $1,550.

Your numbers

Change these to match your driving and local prices. Every figure and chart on this page updates.

Fuel cost over 10 years

  • Nissan Altima
  • Subaru Legacy

Side by side

Nissan AltimaSubaru Legacy
$1,500 Your annual fuel cost $1,550
31 MPG Combined efficiency 30 MPG
27 MPG City 27 MPG
38 MPG Highway 35 MPG
101 cu ft Passenger volume 105 cu ft
15 cu ft Cargo volume 15 cu ft
281 g/mi Tailpipe CO₂ (g/mi) 295 g/mi
6/10 EPA fuel economy score 6/10
6/10 EPA greenhouse gas score 6/10
Gas Powertrain Gas
Regular gasoline Fuel Regular gasoline
2.5L 4-cyl Engine / motor 2.5L 4-cyl
CVT Transmission CVT
FWD Drivetrain AWD

✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.

Nissan Altima vs Subaru Legacy across model years

  • Nissan Altima
  • Subaru Legacy

Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.

How they differ

Per EPA interior volume figures, the Subaru Legacy has more passenger space (105 vs. 101 cu ft).

Among 42 2025 midsize cars, the Nissan Altima ranks 17th and the Subaru Legacy 19th for lowest fuel cost.

Frequently asked questions

Which is more fuel-efficient, the 2025 Nissan Altima or the 2025 Subaru Legacy?

Measured by cost to drive, the Nissan Altima. The Nissan Altima is rated 31 MPG combined and the Subaru Legacy 30 MPG (EPA, most efficient configuration of each).

How much does it cost to fuel the 2025 Nissan Altima vs. the Subaru Legacy per year?

At 15,000 miles a year with $3.10/gal regular gas, about $1,500 for the Nissan Altima and $1,550 for the Subaru Legacy.

Nissan Altima vs Subaru Legacy in other years

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