- Newest year: 2001
- Gas
- Midsize cars
- Same as 2000
2000-2001 Infiniti Q45 MPG & Fuel Cost
2 model years · 18 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 1 of 10 midsize car configurations, MY2001. Ranked against all rated configurations, not sales-weighted.
2000-2001 Infiniti Q45 at a glance
The 2000-2001 Infiniti Q45 covers 2 model years in the EPA database (2 configurations in all), rated 18 MPG combined. The newest model year, 2001, costs about $4,460 a year to fuel for its most efficient version, the Q45 4.1L 8-cyl RWD (18 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA lists identical ratings for every model year of this generation.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2000-2001 Infiniti Q45 by model year
What the 2001 Q45 4.1L 8-cyl RWD costs to drive
Per month
$372
$4,460 a year ÷ 12
Per 25 miles
$7.43
Per 100 miles
$29.73
Five years
$22,300
5 × the yearly cost, prices held at today's level
vs the midsize car median
$630more a year
Class median $3,830 a year, MY2001
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2001 Infiniti Q45 MPG
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
EPA lists the same ratings for the 2001 Infiniti Q45 as for the 2000 model, so the configurations and costs are the ones in the 2000 section above.See 2000
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Q45 (Most efficient) | 4.1L 8-cyl | RWD | 16 | 21 | 18 | $4,460 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2000 Infiniti Q45 MPG
18 MPG · $4,460/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Q45 (Most efficient) | 4.1L 8-cyl | RWD | 16 | 21 | 18 | $4,460 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the Q45 4.1L 8-cyl RWD: $5,320 in California and $3,870 in Texas, a $1,450 difference.
- California $5,320
- Washington $5,010
- New York $4,410
- Florida $4,080
- Texas $3,870
Similar cars
Closest combined MPG among MY2001 midsize car models.
Generations
- 2000-2001 (Y33)
- 2002-2006 (F50)
Frequently asked questions
What gas mileage does the 2000-2001 Infiniti Q45 get?
EPA rates the 2000-2001 Infiniti Q45 at 18 MPG combined across 2 configurations and 2 model years. The most efficient version, the 2001 Q45 4.1L 8-cyl RWD, is rated 18 MPG (16 city, 21 highway).
Which years had the best MPG in the 2000-2001 Infiniti Q45?
Every model year of the 2000-2001 Infiniti Q45 tops out at 18 MPG combined, so no year is better than another.
Did EPA ratings change during the 2000-2001 Infiniti Q45?
No. EPA lists the same ratings for every model year from 2000 to 2001.
How much does it cost to fuel a 2001 Infiniti Q45 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the Q45 4.1L 8-cyl RWD costs about $4,460 a year. Across all 1 configuration the cost runs $4,460 a year.
How much does it cost to drive a 2001 Infiniti Q45 100 miles?
About $29.73 per 100 miles for the Q45 4.1L 8-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026). That is the annual cost over 15,000 miles divided by 150.
Is the 2001 Infiniti Q45 more efficient in the city or on the highway?
The Q45 4.1L 8-cyl RWD is rated 16 city and 21 highway MPG, so it is more efficient on the highway, by 5 MPG.
How does the 2001 Infiniti Q45 compare with other midsize car configurations?
The Q45 4.1L 8-cyl RWD costs about $4,460 a year to fuel, $630 more than the class median of $3,830, and less than 1 of 10 midsize car configurations. The comparison covers all 93 rated midsize car configurations for MY2001, not weighted by sales.
Is the 2001 Infiniti Q45 different from the 2000 model?
No. EPA lists the same ratings for 2000 and 2001: 1 configuration rated 18 MPG combined. See the 2000 Infiniti Q45 for that year.