Pontiac Grand Prix Turbo MPG by year — every rating on record
The Pontiac Grand Prix Turbo has a combined EPA fuel economy rating for 2 model years, from 1989 to 1990. Across those years its best rated version returned 18 mpg (1990) and its thirstiest returned 17 mpg (1989). The EPA record holds 2 configurations for this nameplate, most recently a Midsize Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 1989 | 1 | 17 mpg | 17 mpg | #42 of 52 (20th pct) | Front-Wheel Drive | Premium | Midsize Cars |
| 1990 | 1 | 18 mpg | 18 mpg | #36 of 51 (30th pct) | Front-Wheel Drive | Premium | Midsize Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Pontiac Grand Prix Turbo placed highest in 1990 at #36 of 51, and lowest in 1989 at #42 of 52. It spent 0 of its 2 ranked years in the top half of its class.
Every configuration on record
All 2 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 1990 | 3.1L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | (FFS,TRBO), turbocharged | 15 | 23 | 18 | 638.9 | 16.5 | $4,300 | 493.72222222222223 | n/a |
| 1989 | 3.1L 6-cyl Front-Wheel Drive Automatic 4-spd Premium | (FFS,TRBO), turbocharged | 15 | 23 | 17 | 676.5 | 17.5 | $4,550 | 522.7647058823529 | n/a |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 1989 → 1990 | 17 → 18 mpg | +1 mpg | 639 gal |
What Grand Prix Turbo fuel costs over a year
At the EPA's 11,500 miles a year, the 1990 Pontiac Grand Prix Turbo burns 639 to 639 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,917 | $1,917 | $0 |
| $3.50/gal | $2,236 | $2,236 | $0 |
| $4.00/gal | $2,556 | $2,556 | $0 |
EPA’s own estimate for the 1990 model year is $4,300 to $4,300 a year in fuel, or $10,250 more than the average new vehicle over five years.
How it compares with other Midsize Cars
Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 18 mpg the Pontiac Grand Prix Turbo is 7 mpg below the median, which is worth about $626 a year at $3.50 a gallon.
- All Midsize Cars rankings — every nameplate in the class, best to worst.
Other Pontiac nameplates
Every Pontiac model compared → — all nameplates ranked by best combined rating, with what each one costs a year.