1991 · Subcompact Car · Gas
1991 Pontiac Firebird/Trans Am/Formula MPG & fuel economy
The 1991 Pontiac Firebird/Trans Am/Formula is a subcompact car offered in 3 EPA-rated configurations. The most efficient version returns 19 MPG combined (16 city / 25 highway) on regular gasoline. Across the lineup, combined ratings range from 17 to 19 MPG. Efficiency is unchanged from the 1990 model. Among 63 subcompact cars rated for 1991, it ranks 40th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $2,447 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1991 Pontiac Firebird/Trans Am/Formula's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 6.8 km/L in the city and 10.6 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 16 | 6.8 | 14.7 |
| Highway | 25 | 10.6 | 9.4 |
| Combined | 19 | 8.1 | 12.4 |
How it ranks among 1991 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Firebird/Trans Am/Formula MPG across model years
Full history →3 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.1L 6-cyl · 4-speed automatic Firebird/Trans Am |
Gas | 16 MPG | 25 MPG | 19 MPG | — | $2,447 |
| RWD · 3.1L 6-cyl · 5-speed manual Firebird/Trans Am |
Gas | 15 MPG | 24 MPG | 18 MPG | — | $2,583 |
| RWD · 5.7L 8-cyl · 4-speed automatic Firebird/Trans Am |
Gas | 15 MPG | 22 MPG | 17 MPG | — | $3,485 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline
- Engine / motor
- 3.1L 6-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 85 cu ft
- Cargo volume
- 12 cu ft
- Tailpipe CO₂
- 468 g/mi
1991 Pontiac Firebird/Trans Am/Formula vs. rivals
Compare the 1991 Firebird/Trans Am/Formula
With any other car from any year, including other Firebird/Trans Am/Formula model years. Type a year to jump, e.g. "2015 Accord".
Same year, other powertrains: 1991 Pontiac Firebird/Trans Am/Formula Hybrid (18 MPG)
Frequently asked questions
What is the gas mileage of the 1991 Pontiac Firebird/Trans Am/Formula?
Up to 19 MPG combined (16 city / 25 highway); ratings range from 17 to 19 MPG depending on configuration.
What fuel does the 1991 Pontiac Firebird/Trans Am/Formula use?
Regular gasoline.
What is the fuel average in km/L for the 1991 Pontiac Firebird/Trans Am/Formula?
The 1991 Pontiac Firebird/Trans Am/Formula's fuel average is 8.1 km/L (12.4 L/100 km), or 19 MPG combined: 6.8 km/L in the city and 10.6 km/L on the highway.
How much does it cost to fuel the 1991 Pontiac Firebird/Trans Am/Formula per year?
About $2,447 at 15,000 miles a year with $3.10/gal regular gas, or $16.32 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.