Infiniti QX4 MPG by year — every rating on record
The Infiniti QX4 has a combined EPA fuel economy rating for 7 model years, from 1997 to 2003. Across those years its best rated version returned 16 mpg (2003) and its thirstiest returned 15 mpg (1997). The EPA record holds 11 configurations for this nameplate, most recently a Sport Utility Vehicle - 2WD / Sport Utility Vehicle - 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 1997 | 1 | 15 mpg | 15 mpg | #38 of 48 (21th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicles |
| 1998 | 1 | 15 mpg | 15 mpg | #31 of 42 (27th pct) | 4-Wheel or All-Wheel Drive | Regular | Special Purpose Vehicle 4WD |
| 1999 | 2 | 15 mpg | 15 mpg | #29 of 42 (32th pct) | 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 4WD |
| 2000 | 1 | 15 mpg | 15 mpg | #27 of 46 (42th pct) | 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 4WD |
| 2001 | 2 | 15 mpg | 15 mpg | #39 of 45 (14th pct) | Rear-Wheel Drive, 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD |
| 2002 | 2 | 15 mpg | 15 mpg | #47 of 54 (13th pct) | Rear-Wheel Drive, 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD |
| 2003 | 2 | 16 mpg | 15 mpg | #40 of 58 (32th pct) | Rear-Wheel Drive, 4-Wheel or All-Wheel Drive | Regular | Sport Utility Vehicle - 2WD, Sport Utility Vehicle - 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Infiniti QX4 placed highest in 2000 at #27 of 46, and lowest in 2002 at #47 of 54. It spent 0 of its 7 ranked years in the top half of its class.
Every configuration on record
All 11 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | 3.5L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 3.5L 6-cyl | 14 | 18 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 2003 | 3.5L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular | 3.5L 6-cyl | 14 | 19 | 16 | 718.8 | 18.6 | $3,900 | 555.4375 | n/a |
| 2002 | 3.5L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular | 3.5L 6-cyl | 14 | 18 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 2002 | 3.5L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 3.5L 6-cyl | 13 | 17 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 2001 | 3.5L 6-cyl Rear-Wheel Drive Automatic 4-spd Regular | 3.5L 6-cyl | 14 | 18 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 2001 | 3.5L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 3.5L 6-cyl | 14 | 17 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 2000 | 3.3L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 3.3L 6-cyl | 13 | 17 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 1999 | 3.3L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 3.3L 6-cyl | 13 | 17 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 1999 | 3.3L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | FFS | 13 | 17 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 1998 | 3.3L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | 3.3L 6-cyl | 13 | 17 | 15 | 766.7 | 19.8 | $4,150 | 592.4666666666667 | n/a |
| 1997 | 3.3L 6-cyl 4-Wheel or All-Wheel Drive Automatic 4-spd Regular | (FFS) | 14 | 17 | 15 | 766.7 | 19.8 | $4,150 | 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 |
|---|---|---|---|
| 2002 → 2003 | 15 → 16 mpg | +1 mpg | 719 gal |
What QX4 fuel costs over a year
At the EPA's 11,500 miles a year, the 2003 Infiniti QX4 burns 719 to 767 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 | $2,300 | $144 |
| $3.50/gal | $2,516 | $2,683 | $168 |
| $4.00/gal | $2,875 | $3,067 | $192 |
EPA’s own estimate for the 2003 model year is $3,900 to $4,150 a year in fuel, or $8,250 more than the average new vehicle over five years.
How it compares with other Sport Utility Vehicle - 4WD
Across the 219 nameplates EPA classifies as Sport Utility Vehicle - 4WD, the median best combined rating is 21 mpg. At 16 mpg the Infiniti QX4 is 5 mpg below the median, which is worth about $599 a year at $3.50 a gallon.
- All Sport Utility Vehicle - 4WD 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.