Roush Performance Mustang MPG and Fuel Economy

Roush Performance have been manufacturing models of Mustang for 1 year, with the latest vehicle in 2021 having a combined MPG of 14.

The estimated fuel cost for the 2021 Roush Performance Mustang is $5,300 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will spend $15,000 more on fuel driving a 2021 Roush Performance Mustang.

🛢 The Roush Performance Mustang will consume roughly 21 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Roush Performance Mustang will emit 618 grams of CO2, which is about 9,270,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 442 trees would be needed to offset emissions from the Roush Performance Mustang.

The table below is a complete list of the 1 Roush Performance Mustang fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.

VehicleCombined MPGFuel Cost
2021 Roush Performance Mustang14$5,300

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Roush Performance Mustang MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/roush-performance/mustang.

  • "Roush Performance Mustang MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/roush-performance/mustang. Accessed January 3, 2026.

  • Roush Performance Mustang MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/roush-performance/mustang.