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2006 Ford Mustang Roush
Photo shows the 2006 model (previous generation): 2006 Ford Mustang Roush. Photo: Greg Gjerdingen, CC BY 2.0, via Wikimedia Commons
  • Gas
  • Small cars
  • MY2001–2021

Roush Performance Mustang MPG & Fuel Cost by Year

18 model years · 2001–2021

15 MPG
Combined
12 MPG
City
19 MPG
Highway
Annual cost · MY2021 Mustang 5.0L 8-cyl supercharged RWD
$5,480

15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)

Roush Performance Mustang fuel economy at a glance

EPA has rated the Roush Performance Mustang for 18 model years, 2001 to 2021. Across those years its combined rating runs 14–18 MPG. The latest model year, 2021, has 2 configurations rated 14–15 MPG combined and costing $5,480–$5,600 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient configuration on record since 2001 is the 2013 Stage 3 Mustang 5.0L 8-cyl supercharged RWD, at 18 MPG.

Roush Performance Mustang MPG by year

141618 200120062011201520192021 Gas 141618 20012006201120152021 Gas
Combined MPG: the line is the most efficient configuration, the shaded band reaches down to the least efficient. Dotted lines mark new generations.
Roush Performance Mustang: combined fuel economy and annual fuel cost for each model year, grouped by generation
Year Gas (MPG) $/yr
2021 Generation page
2021 14–15 $5,480–$5,600
2019 Generation page
2019 15 $5,260–$5,470
2015-2017 Generation page
2017 16–17 $4,810–$5,070
2016 16–17 $4,860–$5,110
2015 16 $4,880–$5,110
2011-2014 Generation page
2014 17 $4,600–$4,810
2013 17–18 $4,420–$4,810
2012 16–18 $4,510–$4,900
2011 16 $4,900
2006-2010 Generation page
2010 17–18 $4,460–$4,730
2009 16–17 $4,730–$5,020
2008 16–17 $4,730–$5,020
2007 16–17 $4,730–$5,020
2006 16 $5,020
2001-2004 Generation page
2004 18 $4,460
2003 17–18 $4,460–$4,730
2002 18 $4,460
2001 18 $4,460

Costs use the current EIA price set and 15,000 miles a year for every year, so years are comparable. Green marks the best year for each powertrain.

Roush Performance Mustang generations

6 generations between 2001 and 2021. Open one for the table of every model year and configuration.

2021 powertrain options

Gas · 5.0L
Combined
14–15 MPG
Per year
$5,480–$5,600
See gas configurations
EPA ratings: fueleconomy.gov file of Sep 29, 2026 · premium gasoline $5.36/gal (U.S. average, Sep 2026) · 15,000 mi/yr, 55% city / 45% highway · How we calculate

Frequently asked questions

What is the Roush Performance Mustang's gas mileage by year?

EPA combined ratings for the Roush Performance Mustang run 14–18 MPG across model years 2001 to 2021. The latest year, 2021, is rated 14–15 MPG.

Which Roush Performance Mustang model year has the best gas mileage?

The 2013 Roush Performance Mustang Stage 3 Mustang 5.0L 8-cyl supercharged RWD has the highest combined rating since 2001, at 18 MPG.

How much does a Roush Performance Mustang cost to fuel per year?

For MY2021, EPA-rated configurations cost $5,480–$5,600 a year to fuel, driving 15,000 miles at premium gasoline $5.36/gal (U.S. average, Sep 2026). The most efficient one costs $5,480.

Has the Roush Performance Mustang's fuel economy improved over time?

No. The most efficient configuration moved from 18 MPG in 2001 to 15 MPG in 2021, 3 MPG less.

Which Roush Performance Mustang model years have the same ratings?

EPA lists identical ratings as the previous year for 2002, 2009. The generation pages mark those years "same EPA ratings" and point to the year that holds the full table.

How many generations of the Roush Performance Mustang are there?

EPA data covers 6 generations of the Roush Performance Mustang: 2021, 2019, 2015-2017, 2011-2014, 2006-2010, 2001-2004. Each has its own page with a table for every model year.