2021 · Subcompact Car · Gas
2021 Roush Performance Mustang MPG & fuel economy
The 2021 Roush Performance Mustang is a subcompact car offered in 2 EPA-rated configurations. The most efficient version returns 15 MPG combined (12 city / 19 highway) on premium gasoline. Across the lineup, combined ratings range from 14 to 15 MPG. Among 34 subcompact cars rated for 2021, it ranks 34th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,950 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2021 Roush Performance Mustang's fuel average is 6.4 km/L (15.7 L/100 km), or 15 MPG combined: 5.1 km/L in the city and 8.1 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 12 | 5.1 | 19.6 |
| Highway | 19 | 8.1 | 12.4 |
| Combined | 15 | 6.4 | 15.7 |
How it ranks among 2021 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Mustang MPG across model years
Full history →2 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 5.0L 8-cyl supercharged · 10-speed automatic Mustang |
Gas | 12 MPG | 19 MPG | 15 MPG | — | $3,950 |
| RWD · 5.0L 8-cyl supercharged · 6-speed manual Mustang |
Gas | 12 MPG | 19 MPG | 14 MPG | — | $4,232 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 5.0L 8-cyl supercharged
- Transmission
- 10-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 82 cu ft
- Cargo volume
- 12 cu ft
- Tailpipe CO₂
- 606 g/mi
- EPA fuel economy score
- 2/10
- EPA greenhouse gas score
- 2/10
2021 Roush Performance Mustang vs. rivals
Compare the 2021 Mustang
With any other car from any year, including other Mustang model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2021 Roush Performance Mustang?
Up to 15 MPG combined (12 city / 19 highway); ratings range from 14 to 15 MPG depending on configuration.
What fuel does the 2021 Roush Performance Mustang use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2021 Roush Performance Mustang?
The 2021 Roush Performance Mustang's fuel average is 6.4 km/L (15.7 L/100 km), or 15 MPG combined: 5.1 km/L in the city and 8.1 km/L on the highway.
How much does it cost to fuel the 2021 Roush Performance Mustang per year?
About $3,950 at 15,000 miles a year with $3.95/gal premium gas, or $26.33 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.