- Newest year: 2006
- Gas
- Small cars
2003-2006 Infiniti G35 MPG & Fuel Cost
4 model years · 18–20 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 3 of 10 small car configurations, MY2006. Ranked against all rated configurations, not sales-weighted.
2003-2006 Infiniti G35 at a glance
The 2003-2006 Infiniti G35 covers 4 model years in the EPA database (16 configurations in all), rated 18–20 MPG combined. The newest model year, 2006, costs about $4,020 a year to fuel for its most efficient version, the G35 3.5L 6-cyl RWD (20 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2004, 2005 and 2006.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2003-2006 Infiniti G35 by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2006 | Gas | 18–20 MPG | $3,440–$4,230 | Ratings changed |
| 2005 | Gas | 18–20 MPG | $3,440–$4,230 | Ratings changed |
| 2004 | Gas | 18–20 MPG | $3,270–$4,230 | Ratings changed |
| 2003 | Gas | 19–20 MPG | $3,440–$4,230 | First year |
What the 2006 G35 3.5L 6-cyl RWD costs to drive
Per month
$335
$4,020 a year ÷ 12
Per 25 miles
$6.70
Per 100 miles
$26.80
Five years
$20,100
5 × the yearly cost, prices held at today's level
vs the small car median
$370more a year
Class median $3,650 a year, MY2006
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2006 Infiniti G35 MPG
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2005: The most efficient configuration stays at 20 MPG. Its annual cost stays at $4,020.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G35 3.5L 6-cyl RWD Manual 6-spd (Most efficient) | 3.5L 6-cyl | RWD | 17 | 24 | 20 | $4,020 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 17 | 23 | 19 | $3,440 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 17 | 23 | 19 | $4,230 |
| G35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 16 | 22 | 18 | $3,630 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2005 Infiniti G35 MPG
18–20 MPG · $3,440–$4,230/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 stays at 20 MPG. Its annual cost goes from $3,270 to $4,020, $750 more.
Gas configurations (4)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G35 3.5L 6-cyl RWD Manual 6-spd (Most efficient) | 3.5L 6-cyl | RWD | 17 | 24 | 20 | $4,020 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 16 | 23 | 19 | $3,440 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 16 | 23 | 19 | $4,230 |
| G35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 16 | 22 | 18 | $3,630 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2004 Infiniti G35 MPG
18–20 MPG · $3,270–$4,230/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Versus 2003: The most efficient configuration stays at 20 MPG. Its annual cost goes from $4,020 to $3,270, $750 less.
Gas configurations (5)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G35 3.5L 6-cyl RWD Manual 6-spd (Most efficient) | 3.5L 6-cyl | RWD | 17 | 24 | 20 | $3,270 |
| G35 3.5L 6-cyl RWD Manual 6-spd | 3.5L 6-cyl | RWD | 17 | 24 | 20 | $4,020 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 16 | 23 | 19 | $3,440 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 16 | 23 | 19 | $4,230 |
| G35 3.5L 6-cyl 4WD | 3.5L 6-cyl | 4WD | 16 | 22 | 18 | $3,630 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2003 Infiniti G35 MPG
19–20 MPG · $3,440–$4,230/yr
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
Gas configurations (3)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| G35 3.5L 6-cyl RWD Manual 6-spd (Most efficient) | 3.5L 6-cyl | RWD | 17 | 24 | 20 | $4,020 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 17 | 24 | 19 | $3,440 |
| G35 3.5L 6-cyl RWD Automatic (S5) | 3.5L 6-cyl | RWD | 17 | 24 | 19 | $4,230 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the G35 3.5L 6-cyl RWD: $4,790 in California and $3,480 in Texas, a $1,310 difference.
- California $4,790
- Washington $4,510
- New York $3,970
- Florida $3,670
- Texas $3,480
Similar cars
Closest combined MPG among MY2006 small car models.
Generations
- 2003-2006 (V35)
- 2007-2008 (V36)
Frequently asked questions
What gas mileage does the 2003-2006 Infiniti G35 get?
EPA rates the 2003-2006 Infiniti G35 at 18–20 MPG combined across 16 configurations and 4 model years. The most efficient version, the 2006 G35 3.5L 6-cyl RWD, is rated 20 MPG (17 city, 24 highway).
Which years had the best MPG in the 2003-2006 Infiniti G35?
Every model year of the 2003-2006 Infiniti G35 tops out at 20 MPG combined, so no year is better than another.
Did EPA ratings change during the 2003-2006 Infiniti G35?
Yes. Ratings changed in 2004, 2005 and 2006.
How much does it cost to fuel a 2006 Infiniti G35 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the G35 3.5L 6-cyl RWD costs about $4,020 a year. Across all 4 configurations the cost runs $3,440–$4,230 a year. That is a $790 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2006 Infiniti G35 100 miles?
About $26.80 per 100 miles for the G35 3.5L 6-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $22.93 and $28.20 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2006 Infiniti G35 more efficient in the city or on the highway?
The G35 3.5L 6-cyl RWD is rated 17 city and 24 highway MPG, so it is more efficient on the highway, by 7 MPG.
How does the 2006 Infiniti G35 compare with other small car configurations?
The G35 3.5L 6-cyl RWD costs about $4,020 a year to fuel, $370 more than the class median of $3,650, and less than 3 of 10 small car configurations. The comparison covers all 286 rated small car configurations for MY2006, not weighted by sales.
Is the 2006 Infiniti G35 different from the 2005 model?
The most efficient configuration stays at 20 MPG. Its annual cost stays at $4,020. EPA lists 4 configurations for 2006 against 4 configurations for 2005. See the 2005 Infiniti G35 for that year.