- Newest year: 2009
- Gas
- Standard SUVs
2007-2009 Mercedes-Benz GL-Class MPG & Fuel Cost
3 model years · 14–20 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.
2007-2009 Mercedes-Benz GL-Class at a glance
The 2007-2009 Mercedes-Benz GL-Class covers 3 model years in the EPA database (7 configurations in all), rated 14–20 MPG combined. The newest model year, 2009, costs about $5,360 a year to fuel for its most efficient version, the GL450 4matic 4.6L 8-cyl 4WD (15 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). Powertrains over the years: gas and diesel. EPA changed the ratings in 2008 and 2009. The best combined rating in the generation, 20 MPG, was reached in 2007 and 2008.
EPA re-estimated ratings of 1985-2007 vehicles under its 2008 method; these figures are the re-estimated values.
2007-2009 Mercedes-Benz GL-Class by model year
What the 2009 GL450 4matic 4.6L 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 Mercedes-Benz GL-Class MPG
Versus 2008: The most efficient configuration moves from 20 to 15 MPG, down 5. Its annual cost goes from $4,720 to $5,360, $640 more.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GL450 4matic (Most efficient) | 4.6L 8-cyl | 4WD | 13 | 18 | 15 | $5,360 |
| GL550 4matic | 5.5L 8-cyl | 4WD | 13 | 17 | 14 | $5,740 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2008 Mercedes-Benz GL-Class MPG
14–20 MPG · $4,720–$5,740/yr
Versus 2007: The most efficient configuration stays at 20 MPG. Its annual cost stays at $4,720.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GL450 4matic (Most efficient) | 4.6L 8-cyl | 4WD | 13 | 18 | 15 | $5,360 |
| GL550 4matic | 5.5L 8-cyl | 4WD | 13 | 17 | 14 | $5,740 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Diesel configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GL320 CDI 4matic (Most efficient) | 3.0L 6-cyl turbo | 4WD | 18 | 24 | 20 | $4,720 |
Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).
2007 Mercedes-Benz GL-Class MPG
15–20 MPG · $4,720–$5,360/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 |
|---|---|---|---|---|---|---|
| GL450 4matic (Most efficient) | 4.6L 8-cyl | 4WD | 13 | 17 | 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).
Diesel configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| GL320 CDI 4matic (Most efficient) | 3.0L 6-cyl turbo | 4WD | 18 | 23 | 20 | $4,720 |
Diesel is priced at diesel $6.29/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the GL450 4matic 4.6L 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
Frequently asked questions
What gas mileage does the 2007-2009 Mercedes-Benz GL-Class get?
EPA rates the 2007-2009 Mercedes-Benz GL-Class at 14–20 MPG combined across 7 configurations and 3 model years. The most efficient version, the 2008 GL320 CDI 4matic 3.0L 6-cyl turbo 4WD, is rated 20 MPG (18 city, 24 highway). By powertrain: Gas: 14–15 MPG; Diesel: 20 MPG.
Which years had the best MPG in the 2007-2009 Mercedes-Benz GL-Class?
The GL320 CDI 4matic 3.0L 6-cyl turbo 4WD reached the generation's best combined rating, 20 MPG, in 2007 and 2008. The lowest top rating, 15 MPG, was in 2009.
Did EPA ratings change during the 2007-2009 Mercedes-Benz GL-Class?
Yes. Ratings changed in 2008 and 2009.
How much does it cost to fuel a 2009 Mercedes-Benz GL-Class per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the GL450 4matic 4.6L 8-cyl 4WD costs about $5,360 a year. Across all 2 configurations the cost runs $5,360–$5,740 a year. That is a $380 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2009 Mercedes-Benz GL-Class 100 miles?
About $35.73 per 100 miles for the GL450 4matic 4.6L 8-cyl 4WD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $35.73 and $38.27 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2009 Mercedes-Benz GL-Class more efficient in the city or on the highway?
The GL450 4matic 4.6L 8-cyl 4WD is rated 13 city and 18 highway MPG, so it is more efficient on the highway, by 5 MPG.
How does the 2009 Mercedes-Benz GL-Class compare with other standard SUV configurations?
The GL450 4matic 4.6L 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 Mercedes-Benz GL-Class different from the 2008 model?
The most efficient configuration moves from 20 to 15 MPG, down 5. Its annual cost goes from $4,720 to $5,360, $640 more. EPA lists 2 configurations for 2009 against 3 configurations for 2008. See the 2008 Mercedes-Benz GL-Class for that year.