Infiniti · 1990–2006 · Gas
Infiniti Q45 MPG by year
The EPA has rated 17 model years of the Infiniti Q45, from 1990 to 2006. The most fuel-efficient year is the 2006, at 18 MPG combined in its best configuration. The best 2006 model is 6% more efficient than the best 1990 model (18 vs. 17 MPG). The 2006 model is 14% less efficient than the median midsize car that year (18 vs. 21 MPG).
Combined MPG by model year
- Q45, most efficient version
- Range across configurations
- Class median
Shaded band: range across that year's configurations. Class median: same-year models in the same class, rated in MPG. Click a point to open that model year; the table below lists every value.
Every Q45 model year
| Year | Type | Best combined | City / Hwy | Class median | Range | Configs | Fuel / yr |
|---|---|---|---|---|---|---|---|
| 2006 | Gas | 18 MPG | 16 / 22 | 21 | — | 2 | $3,292 |
| 2005 | Gas | 18 MPG | 16 / 22 | 21 | — | 1 | $3,292 |
| 2004 | Gas | 18 MPG | 16 / 22 | 21 | — | 1 | $3,292 |
| 2003 | Gas | 18 MPG | 16 / 22 | 19 | — | 1 | $3,292 |
| 2002 | Gas | 18 MPG | 16 / 23 | 20.5 | — | 1 | $3,292 |
| 2001 | Gas | 18 MPG | 16 / 21 | 20 | — | 1 | $3,292 |
| 2000 | Gas | 18 MPG | 16 / 21 | 20 | — | 1 | $3,292 |
| 1999 | Gas | 18 MPG | 16 / 22 | 20 | — | 1 | $3,292 |
| 1998 | Gas | 18 MPG | 16 / 22 | 21 | — | 1 | $3,292 |
| 1997 | Gas | 18 MPG | 16 / 22 | 20 | — | 1 | $3,292 |
| 1996 | Gas | 17 MPG | 15 / 20 | 21 | — | 1 | $3,485 |
| 1995 | Gas | 17 MPG lowest 16 |
15 / 20 | 20 | — | 2 | $3,485 |
| 1994 | Gas | 17 MPG lowest 16 |
15 / 20 | 20 | — | 2 | $3,485 |
| 1993 | Gas | 17 MPG lowest 15 |
15 / 20 | 19 | — | 2 | $3,485 |
| 1992 | Gas | 17 MPG lowest 15 |
15 / 20 | 19 | — | 2 | $3,485 |
| 1991 | Gas | 17 MPG lowest 15 |
15 / 20 | 19 | — | 2 | $3,485 |
| 1990 | Gas | 17 MPG | 15 / 20 | 20 | — | 1 | $3,485 |
Fuel cost uses today's default prices for every year so model years compare like for like. Sort any column.
Compare Q45 model years
See how much a newer Q45 would save over an older one.
Models similar to the Infiniti Q45
Frequently asked questions
Which Infiniti Q45 year has the best fuel economy?
The 1997 Infiniti Q45, rated up to 18 MPG combined. At 15,000 miles a year with $3.95/gal premium gas, that works out to about $3,292 a year.
Which Infiniti Q45 year has the worst fuel economy?
The 1993 model, whose most efficient version is rated 17 MPG combined (about $3,485 a year to fuel).
What is the fuel economy of the latest Infiniti Q45?
The 2006 Infiniti Q45 is rated up to 18 MPG combined.