Roush Performance Mustang
Transmission, start-stop, premium fuel and flex-fuel by model year, 2010–2017, 2019, 2021
TransmissionThe 2021 Roush Performance Mustang is offered with a 10-speed automatic or a 6-speed manual, depending on configuration.
Auto start-stopNo. EPA lists no auto start-stop on any 2021 Roush Performance Mustang configuration it tested.
Premium fuelEPA tested the 2021 Roush Performance Mustang on premium fuel; your owner's manual or fuel-door label is the authority.
Flex-fuel (E85)No. EPA does not list any 2021 Roush Performance Mustang configuration as a flex-fuel vehicle (FFV).
2021 at a glance
2 configurations tested by EPA
EPA lists a manual transmission for the Roush Performance Mustang in these model years: 2010–2017, 2019, 2021 (10 years of data from 2010–2021).
Roush Performance Mustang features by model year
Configurations by year
2021 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Mustang | 5.0L 8-cyl supercharged | 10-speed automaticS10 | Rear-Wheel | No | Premium | No |
| Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2019 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 10-speed automaticS10 | Rear-Wheel | No | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2017 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed automaticS6 | Rear-Wheel | No | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2016 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed automaticS6 | Rear-Wheel | No | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2015 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed automaticS6 | Rear-Wheel | No | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2014 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed automatic6-spd | Rear-Wheel | No | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2013 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed automatic6-spd | Rear-Wheel | No | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | No | Premium | No |
2012 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed automatic6-spd | Rear-Wheel | Not reported | Premium | No |
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
2011 Roush Performance Mustang
1 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 5.0L 8-cyl supercharged | 6-speed manual6-spd | Rear-Wheel | Not reported | Premium | No |
2010 Roush Performance Mustang
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| Stage 3 Mustang | 4.6L 8-cyl supercharged | 5-speed automatic5-spd | Rear-Wheel | Not reported | Premium | No |
| Stage 3 Mustang | 4.6L 8-cyl supercharged | 5-speed manual5-spd | Rear-Wheel | Not reported | Premium | No |
Check before you buy or refuel Confirm on the window sticker, owner's manual or with the dealer. Trims and options can differ from the configurations EPA tested.
About premium fuel EPA data shows the fuel a vehicle was tested on. It does not say whether premium is required or only recommended. Your owner's manual or fuel-door label is the authority.
Before using E85 Confirm the vehicle is a flex-fuel vehicle (FFV) in the owner's manual, or look for a yellow gas cap or an "FFV" badge. Not every version of a model is flex-fuel.
Source: U.S. EPA / Department of Energy vehicle data fromFuelEconomy.gov, data as of September 29, 2026.See how we classify vehicles.
More Roush Performance lists
- Roush Performance models without a CVT
- Roush Performance models with a manual transmission
- Roush Performance models with a conventional automatic transmission
- Roush Performance models without auto start-stop
- Roush Performance models EPA tested on premium fuel