Infiniti Q45 Full-Active Suspension MPG by year — every rating on record
The Infiniti Q45 Full-Active Suspension has a combined EPA fuel economy rating for 5 model years, from 1991 to 1995. Across those years its best rated version returned 16 mpg (1994) and its thirstiest returned 15 mpg (1991). The EPA record holds 5 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 |
|---|---|---|---|---|---|---|---|
| 1991 | 1 | 15 mpg | 15 mpg | #47 of 57 (18th pct) | Rear-Wheel Drive | Premium | Midsize Cars |
| 1992 | 1 | 15 mpg | 15 mpg | #40 of 50 (20th pct) | Rear-Wheel Drive | Premium | Midsize Cars |
| 1993 | 1 | 15 mpg | 15 mpg | #40 of 48 (17th pct) | Rear-Wheel Drive | Premium | Midsize Cars |
| 1994 | 1 | 16 mpg | 16 mpg | #32 of 36 (11th pct) | Rear-Wheel Drive | Premium | Midsize Cars |
| 1995 | 1 | 16 mpg | 16 mpg | #34 of 39 (13th pct) | Rear-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 Infiniti Q45 Full-Active Suspension placed highest in 1994 at #32 of 36, and lowest in 1991 at #47 of 57. It spent 0 of its 5 ranked years in the top half of its class.
Every configuration on record
All 5 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 4.5L 8-cyl Rear-Wheel Drive Automatic 4-spd Premium | (GUZZLER) (FFS) | 14 | 19 | 16 | 718.8 | 18.6 | $4,850 | 555.4375 | n/a |
| 1994 | 4.5L 8-cyl Rear-Wheel Drive Automatic 4-spd Premium | (GUZZLER) (FFS) | 14 | 19 | 16 | 718.8 | 18.6 | $4,850 | 555.4375 | n/a |
| 1993 | 4.5L 8-cyl Rear-Wheel Drive Automatic 4-spd Premium | (GUZZLER) (FFS) | 14 | 18 | 15 | 766.7 | 19.8 | $5,150 | 592.4666666666667 | n/a |
| 1992 | 4.5L 8-cyl Rear-Wheel Drive Automatic 4-spd Premium | (GUZZLER) (FFS) | 13 | 17 | 15 | 766.7 | 19.8 | $5,150 | 592.4666666666667 | n/a |
| 1991 | 4.5L 8-cyl Rear-Wheel Drive Automatic 4-spd Premium | (GUZZLER) (FFS) | 13 | 17 | 15 | 766.7 | 19.8 | $5,150 | 592.4666666666667 | 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 |
|---|---|---|---|
| 1993 → 1994 | 15 → 16 mpg | +1 mpg | 719 gal |
What Q45 Full-Active Suspension fuel costs over a year
At the EPA's 11,500 miles a year, the 1995 Infiniti Q45 Full-Active Suspension burns 719 to 719 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 | $2,156 | $2,156 | $0 |
| $3.50/gal | $2,516 | $2,516 | $0 |
| $4.00/gal | $2,875 | $2,875 | $0 |
EPA’s own estimate for the 1995 model year is $4,850 to $4,850 a year in fuel, or $13,000 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 16 mpg the Infiniti Q45 Full-Active Suspension is 9 mpg below the median, which is worth about $906 a year at $3.50 a gallon.
- All Midsize Cars rankings — every nameplate in the class, best to worst.
Other Infiniti nameplates
Every Infiniti model compared → — all nameplates ranked by best combined rating, with what each one costs a year.