- Newest year: 2009
- Gas
- Standard SUVs
- Same as 2008
2003-2009 Lexus GX MPG & Fuel Cost
7 model years · 15 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Among the costliest standard SUV configurations to fuel, MY2009. Ranked against all rated configurations, not sales-weighted.
2003-2009 Lexus GX at a glance
The 2003-2009 Lexus GX covers 7 model years in the EPA database (7 configurations in all), rated 15 MPG combined. The newest model year, 2009, costs about $5,360 a year to fuel for its most efficient version, the 470 4.7L 8-cyl 4WD (15 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2005 and 2006; 2004, 2007, 2008 and 2009 repeat the values of the year before.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2003-2009 Lexus GX by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2009 | Gas | 15 MPG | $5,360 | Same EPA ratings as 2008 |
| 2008 | Gas | 15 MPG | $5,360 | Same EPA ratings as 2007 |
| 2007 | Gas | 15 MPG | $5,360 | Same EPA ratings as 2006 |
| 2006 | Gas | 15 MPG | $5,360 | Ratings changed |
| 2005 | Gas | 15 MPG | $4,360 | Ratings changed |
| 2004 | Gas | 15 MPG | $4,360 | Same EPA ratings as 2003 |
| 2003 | Gas | 15 MPG | $4,360 | First year |
What the 2009 470 4.7L 8-cyl 4WD costs to drive
Per month
$447
$5,360 a year ÷ 12
Per 25 miles
$8.93
Per 100 miles
$35.73
Five years
$26,800
5 × the yearly cost, prices held at today's level
vs the standard SUV median
$1,520more a year
Class median $3,840 a year, MY2009
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2009 Lexus GX MPG
EPA lists the same ratings for the 2009 Lexus GX as for the 2008 model, so the configurations and costs are the ones in the 2008 section above.See 2008
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| 470 (Most efficient) | 4.7L 8-cyl | 4WD | 14 | 18 | 15 | $5,360 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Lexus GX MPG
Same EPA ratings as 2007
EPA lists the same ratings for the 2008 Lexus GX as for the 2007 model, so the configurations and costs are the ones in the 2007 section above.See 2007
2007 Lexus GX MPG
Same EPA ratings as 2006
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 2007 Lexus GX as for the 2006 model, so the configurations and costs are the ones in the 2006 section above.See 2006
2006 Lexus GX MPG
15 MPG · $5,360/yr
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 15 MPG. Its annual cost goes from $4,360 to $5,360, $1,000 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| 470 (Most efficient) | 4.7L 8-cyl | 4WD | 14 | 18 | 15 | $5,360 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2005 Lexus GX MPG
15 MPG · $4,360/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 15 MPG. Its annual cost stays at $4,360.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| 470 (Most efficient) | 4.7L 8-cyl | 4WD | 14 | 18 | 15 | $4,360 |
2004 Lexus GX 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 Lexus GX as for the 2003 model, so the configurations and costs are the ones in the 2003 section above.See 2003
2003 Lexus GX MPG
15 MPG · $4,360/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 |
|---|---|---|---|---|---|---|
| 470 (Most efficient) | 4.7L 8-cyl | 4WD | 14 | 17 | 15 | $4,360 |
Fuel cost by state
Yearly cost of the 470 4.7L 8-cyl 4WD: $6,390 in California and $4,650 in Texas, a $1,740 difference.
- California $6,390
- Washington $6,010
- New York $5,290
- Florida $4,890
- Texas $4,650
Similar cars
Closest combined MPG among MY2009 standard SUV models.
Generations
- 2003-2009 (J120)
- 2010-2023 (J150)
- 2024-2026 (J250)
Frequently asked questions
What gas mileage does the 2003-2009 Lexus GX get?
EPA rates the 2003-2009 Lexus GX at 15 MPG combined across 7 configurations and 7 model years. The most efficient version, the 2009 470 4.7L 8-cyl 4WD, is rated 15 MPG (14 city, 18 highway).
Which years had the best MPG in the 2003-2009 Lexus GX?
Every model year of the 2003-2009 Lexus GX tops out at 15 MPG combined, so no year is better than another.
Did EPA ratings change during the 2003-2009 Lexus GX?
Yes. Ratings changed in 2005 and 2006. In 2004, 2007, 2008 and 2009 the values repeat the year before.
How much does it cost to fuel a 2009 Lexus GX per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the 470 4.7L 8-cyl 4WD costs about $5,360 a year. Across all 1 configuration the cost runs $5,360 a year.
How much does it cost to drive a 2009 Lexus GX 100 miles?
About $35.73 per 100 miles for the 470 4.7L 8-cyl 4WD 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 2009 Lexus GX more efficient in the city or on the highway?
The 470 4.7L 8-cyl 4WD is rated 14 city and 18 highway MPG, so it is more efficient on the highway, by 4 MPG.
How does the 2009 Lexus GX compare with other standard SUV configurations?
The 470 4.7L 8-cyl 4WD costs about $5,360 a year to fuel, $1,520 more than the class median of $3,840, and less than 0 of 10 standard SUV configurations. The comparison covers all 341 rated standard SUV configurations for MY2009, not weighted by sales.
Is the 2009 Lexus GX different from the 2008 model?
No. EPA lists the same ratings for 2008 and 2009: 1 configuration rated 15 MPG combined. See the 2008 Lexus GX for that year.