- Newest year: 2008
- Gas
- Standard SUVs
- Same as 2007
2003-2008 Infiniti FX35 MPG & Fuel Cost
6 model years · 17–18 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 2 of 10 standard SUV configurations, MY2008. Ranked against all rated configurations, not sales-weighted.
2003-2008 Infiniti FX35 at a glance
The 2003-2008 Infiniti FX35 covers 6 model years in the EPA database (12 configurations in all), rated 17–18 MPG combined. The newest model year, 2008, costs about $4,460 a year to fuel for its most efficient version, the FX35 3.5L 6-cyl RWD (18 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2005 and 2007; 2004, 2006 and 2008 repeat the values of the year before. The best combined rating in the generation, 18 MPG, was reached in 2005, 2006, 2007 and 2008.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2003-2008 Infiniti FX35 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2008 | Gas | 17–18 MPG | $4,460–$4,730 | Same EPA ratings as 2007 |
| 2007 | Gas | 17–18 MPG | $4,460–$4,730 | Ratings changed |
| 2006 | Gas | 17–18 MPG | $3,630–$3,840 | Same EPA ratings as 2005 |
| 2005 | Gas | 17–18 MPG | $3,630–$3,840 | Ratings changed |
| 2004 | Gas | 17 MPG | $3,840 | Same EPA ratings as 2003 |
| 2003 | Gas | 17 MPG | $3,840 | First year |
What the 2008 FX35 3.5L 6-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 standard SUV median
$620more a year
Class median $3,840 a year, MY2008
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Infiniti FX35 MPG
EPA lists the same ratings for the 2008 Infiniti FX35 as for the 2007 model, so the configurations and costs are the ones in the 2007 section above.See 2007
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FX35 3.5L 6-cyl RWD (Most efficient) | 3.5L 6-cyl | RWD | 15 | 22 | 18 | $4,460 |
| FX35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 15 | 20 | 17 | $4,730 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2007 Infiniti FX35 MPG
17–18 MPG · $4,460–$4,730/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2006: The most efficient configuration stays at 18 MPG. Its annual cost goes from $3,630 to $4,460, $830 more.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FX35 3.5L 6-cyl RWD (Most efficient) | 3.5L 6-cyl | RWD | 15 | 22 | 18 | $4,460 |
| FX35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 15 | 20 | 17 | $4,730 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2006 Infiniti FX35 MPG
Same EPA ratings as 2005
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 2006 Infiniti FX35 as for the 2005 model, so the configurations and costs are the ones in the 2005 section above.See 2005
2005 Infiniti FX35 MPG
17–18 MPG · $3,630–$3,840/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2004: The most efficient configuration moves from 17 to 18 MPG, up 1. Its annual cost goes from $3,840 to $3,630, $210 less.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FX35 3.5L 6-cyl RWD (Most efficient) | 3.5L 6-cyl | RWD | 15 | 22 | 18 | $3,630 |
| FX35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 15 | 20 | 17 | $3,840 |
2004 Infiniti FX35 MPG
Same EPA ratings as 2003
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 2004 Infiniti FX35 as for the 2003 model, so the configurations and costs are the ones in the 2003 section above.See 2003
2003 Infiniti FX35 MPG
17 MPG · $3,840/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| FX35 3.5L 6-cyl RWD (Most efficient) | 3.5L 6-cyl | RWD | 15 | 22 | 17 | $3,840 |
| FX35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 15 | 20 | 17 | $3,840 |
Fuel cost by state
Yearly cost of the FX35 3.5L 6-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 MY2008 standard SUV models.
Generations
Frequently asked questions
What gas mileage does the 2003-2008 Infiniti FX35 get?
EPA rates the 2003-2008 Infiniti FX35 at 17–18 MPG combined across 12 configurations and 6 model years. The most efficient version, the 2008 FX35 3.5L 6-cyl RWD, is rated 18 MPG (15 city, 22 highway).
Which years had the best MPG in the 2003-2008 Infiniti FX35?
The FX35 3.5L 6-cyl RWD reached the generation's best combined rating, 18 MPG, in 2005, 2006, 2007 and 2008. The lowest top rating, 17 MPG, was in 2003 and 2004.
Did EPA ratings change during the 2003-2008 Infiniti FX35?
Yes. Ratings changed in 2005 and 2007. In 2004, 2006 and 2008 the values repeat the year before.
How much does it cost to fuel a 2008 Infiniti FX35 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the FX35 3.5L 6-cyl RWD costs about $4,460 a year. Across all 2 configurations the cost runs $4,460–$4,730 a year. That is a $270 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2008 Infiniti FX35 100 miles?
About $29.73 per 100 miles for the FX35 3.5L 6-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $29.73 and $31.53 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2008 Infiniti FX35 more efficient in the city or on the highway?
The FX35 3.5L 6-cyl RWD is rated 15 city and 22 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2008 Infiniti FX35 compare with other standard SUV configurations?
The FX35 3.5L 6-cyl RWD costs about $4,460 a year to fuel, $620 more than the class median of $3,840, and less than 2 of 10 standard SUV configurations. The comparison covers all 334 rated standard SUV configurations for MY2008, not weighted by sales.
Is the 2008 Infiniti FX35 different from the 2007 model?
No. EPA lists the same ratings for 2007 and 2008: 2 configurations rated 17–18 MPG combined. See the 2007 Infiniti FX35 for that year.