1998 Pontiac Firebird/Formula MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 1998 Pontiac Firebird/Formula.
The 1998 Pontiac Firebird/Formula has 4 model options: Automatic 4-spd 6-cyl, 3.8 L, Manual 5-spd 6-cyl, 3.8 L, Automatic 4-spd 8-cyl, 5.7 L and Manual 6-spd 8-cyl, 5.7 L.
The 1998 Pontiac Firebird/Formula Automatic 4-spd 6-cyl, 3.8 L runs on regular gasoline and is in the Subcompact Cars car class.
The 1998 Pontiac Firebird/Formula Manual 5-spd 6-cyl, 3.8 L runs on regular gasoline and is in the Subcompact Cars car class.
The 1998 Pontiac Firebird/Formula Automatic 4-spd 8-cyl, 5.7 L runs on premium gasoline and is in the Subcompact Cars car class.
The 1998 Pontiac Firebird/Formula Manual 6-spd 8-cyl, 5.7 L runs on premium gasoline and is in the Subcompact Cars car class.
🛣 How Many Miles per Gallon (MPG) Does a 1998 Pontiac Firebird/Formula Get?
Across all models, the combined average MPG for the 1998 Pontiac Firebird/Formula is 20 miles per gallon.
The table below breaks down the MPG for each model option:
| Model Option | Combined MPG | City MPG | Highway MPG |
|---|---|---|---|
| Automatic 4-spd 6-cyl, 3.8 L | 20 | 17 | 26 |
| Manual 5-spd 6-cyl, 3.8 L | 21 | 17 | 28 |
| Automatic 4-spd 8-cyl, 5.7 L | 18 | 16 | 22 |
| Manual 6-spd 8-cyl, 5.7 L | 19 | 16 | 24 |
💵 What is the Average Yearly Fuel Cost for a 1998 Pontiac Firebird/Formula?
The average fuel costs for all models of the 1998 Pontiac Firebird/Formula is $3,538.
The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
Comparing a 1998 Pontiac Firebird/Formula to an average vehicle over 5 years, you will spend $6,187 more on fuel.
The table below shows the fuel costs and 5-year save/spend for each model option:
| Model Option | Fuel Cost | 5-Year Save/Spend |
|---|---|---|
| Automatic 4-spd 6-cyl, 3.8 L | $3,150 | spend $4,250 more |
| Manual 5-spd 6-cyl, 3.8 L | $3,000 | spend $3,500 more |
| Automatic 4-spd 8-cyl, 5.7 L | $4,100 | spend $9,000 more |
| Manual 6-spd 8-cyl, 5.7 L | $3,900 | spend $8,000 more |
🛢 How Many Barrels of Petroleum Does a 1998 Pontiac Firebird/Formula Consume?
Across all models, the average number barrels of petroleum that the 1998 Pontiac Firebird/Formula will consume in one year is 16 barrels.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
| Model Option | Barrels |
|---|---|
| Automatic 4-spd 6-cyl, 3.8 L | 15 |
| Manual 5-spd 6-cyl, 3.8 L | 14 |
| Automatic 4-spd 8-cyl, 5.7 L | 17 |
| Manual 6-spd 8-cyl, 5.7 L | 16 |
💨 How Many Grams of CO2 Does a 1998 Pontiac Firebird/Formula Emit?
The 1998 Pontiac Firebird/Formula will emit an average of about -15,000 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 1 tree would be needed to offset emissions from the 1998 Pontiac Firebird/Formula.
Overview
The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 4 1998 Pontiac Firebird/Formula model options.
Automatic 4-spd 6-cyl, 3.8 L
The table below contains all of the details we have for the 1998 Pontiac Firebird/Formula Automatic 4-spd 6-cyl, 3.8 L:
| City MPG | 17 |
|---|---|
| Highway MPG | 26 |
| Combined MPG | 20 |
| Save/Spend vs Average Car | Spend $4,250 |
| Fuel Cost | $3,150 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 15 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Rear-Wheel Drive |
| Cylinders | 6 |
| Displacement | 3.8 |
| Transmission | Automatic 4-spd |
| Vehicle Class | Subcompact Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Manual 5-spd 6-cyl, 3.8 L
The table below contains all of the details we have for the 1998 Pontiac Firebird/Formula Manual 5-spd 6-cyl, 3.8 L:
| City MPG | 17 |
|---|---|
| Highway MPG | 28 |
| Combined MPG | 21 |
| Save/Spend vs Average Car | Spend $3,500 |
| Fuel Cost | $3,000 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 14 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Rear-Wheel Drive |
| Cylinders | 6 |
| Displacement | 3.8 |
| Transmission | Manual 5-spd |
| Vehicle Class | Subcompact Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Automatic 4-spd 8-cyl, 5.7 L
The table below contains all of the details we have for the 1998 Pontiac Firebird/Formula Automatic 4-spd 8-cyl, 5.7 L:
| City MPG | 16 |
|---|---|
| Highway MPG | 22 |
| Combined MPG | 18 |
| Save/Spend vs Average Car | Spend $9,000 |
| Fuel Cost | $4,100 |
| Fuel Type 1 | Premium |
| Barrels of Petroleum | 17 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Rear-Wheel Drive |
| Cylinders | 8 |
| Displacement | 5.7 |
| Transmission | Automatic 4-spd |
| Vehicle Class | Subcompact Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Manual 6-spd 8-cyl, 5.7 L
The table below contains all of the details we have for the 1998 Pontiac Firebird/Formula Manual 6-spd 8-cyl, 5.7 L:
| City MPG | 16 |
|---|---|
| Highway MPG | 24 |
| Combined MPG | 19 |
| Save/Spend vs Average Car | Spend $8,000 |
| Fuel Cost | $3,900 |
| Fuel Type 1 | Premium |
| Barrels of Petroleum | 16 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Rear-Wheel Drive |
| Cylinders | 8 |
| Displacement | 5.7 |
| Transmission | Manual 6-spd |
| Vehicle Class | Subcompact Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/pontiac/firebird-formula/1998">1998 Pontiac Firebird/Formula MPG and Fuel Economy</a>
"1998 Pontiac Firebird/Formula MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/pontiac/firebird-formula/1998.
"1998 Pontiac Firebird/Formula MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/pontiac/firebird-formula/1998. Accessed January 3, 2026.
1998 Pontiac Firebird/Formula MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/pontiac/firebird-formula/1998.