For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
CarCodyAdvertise
Vendor dashboard
Roush Performance
Fuel economy & running costsGasoline
#63 of 69 · Roush Performance cars

2004 Roush PerformancePerformance Stage 3 Mustang

Subcompact Cars · Rear-Wheel Drive · 4.6 L 8-cyl supercharged

18MPGcombined
15city
23highway
A year of fuel$4,550
CO₂ from the tailpipe493.7 g/mi
Figures from the EPA label (fueleconomy.gov), the same as on the car's window sticker.
See it on fueleconomy.gov

Against the 69 roush Performance cars

Combined MPG 18 MPGbest 18 · avg 14
Annual fuel cost $4,550best $4,550 · avg $5,821

Bars are scaled to the best in the list; the mark shows the list average. Lower is better for fuel cost; higher is better for the rest. All figures are the EPA's.

Summary

2004 Roush Performance Stage 3 Mustang by Roush Performance. The figures below are from US EPA fueleconomy.gov, with the page each one came from.

Details

Model year
2004fueleconomy.gov · 3 Oct 2026

Efficiency

Combined MPG
18fueleconomy.gov · 3 Oct 2026
City MPG
15fueleconomy.gov · 3 Oct 2026
Highway MPG
23fueleconomy.gov · 3 Oct 2026

Running cost

Annual fuel cost
$4,550fueleconomy.gov · 3 Oct 2026
CO₂ (tailpipe)
493.7 g/mifueleconomy.gov · 3 Oct 2026

Car

Body
Carfueleconomy.gov · 3 Oct 2026
EPA class
Subcompact Carsfueleconomy.gov · 3 Oct 2026
Drive
Rear-Wheel Drivefueleconomy.gov · 3 Oct 2026

Powertrain

Engine
4.6 L 8-cyl superchargedfueleconomy.gov · 3 Oct 2026
Transmission
Manual 5-spdfueleconomy.gov · 3 Oct 2026
Fuel
Gasolinefueleconomy.gov · 3 Oct 2026

More roush Performance cars

See the list
Roush Performance #1 2021 · Roush Performance Performance Mustang 15Combined MPG $5,500Fuel / year Roush Performance #2 2021 · Roush Performance Performance Mustang 14Combined MPG $5,850Fuel / year Roush Performance #3 2020 · Roush Performance Performance F150 Pickup 2WD 13Combined MPG $6,300Fuel / year Roush Performance #4 2020 · Roush Performance Performance F150 Pickup 4WD 13Combined MPG $6,300Fuel / year Roush Performance #5 2020 · Roush Performance Performance Stage 3 Mustang 15Combined MPG $5,500Fuel / year Roush Performance #6 2020 · Roush Performance Performance Stage 3 Mustang 14Combined MPG $5,850Fuel / year

Listed on CarCody

Sources