2023 Mercedes-Benz GLS mpg
Combined mpg, GLS 450 4MATIC AWD
20mpg
- 18 city, 23 highway.
- 3 mpg below the median of 154 SUVs (2023).
- 4 trims: 16 to 20 mpg.
12,000 miles a year. Gas $3.20.
| Trim | Engine | Drive | City mpg | Hwy mpg | Combined | Tank, gal | Miles per tank | Cost a year |
|---|---|---|---|---|---|---|---|---|
| GLS 450 4MATIC AWD | 3.0L 6cyl | AWD | 18 | 23 | 20 | 23.8 | 476 | $1,920 |
| GLS 580 4MATIC AWD | 4.0L 8cyl | AWD | 16 | 21 | 18 | 23.8 | 428 | $2,133 |
| Maybach GLS 600 4MATIC SUV | 4.0L | AWD | 15 | 20 | 17 | 23.8 | 405 | $2,259 |
| AMG GLS 63 4MATIC | 4.0L | AWD | 14 | 19 | 16 | 23.8 | 381 | $2,400 |
Fuel cost
GLS 450 4MATIC AWD, 20 mpg combined.
- Per year
- $1,920
- Per month
- $160
- Per mile
- 16.0 cents
- Fill the tank
- $76.16
- Top trim: Maybach GLS 600 4MATIC SUV. $2,259 a year. $339 more than the GLS 450 4MATIC AWD.
Trip cost
| Trip | Gallons | Cost |
|---|---|---|
| 100 miles | 4.3 | $13.91 |
| 300 miles | 13.0 | $41.74 |
| 500 miles | 21.7 | $69.57 |
| 1,000 miles | 43.5 | $139 |
Commute cost
- Per month
- $139
- Per year
- $1,664
- Miles a month
- 867
GLS 450 4MATIC AWD. 20 miles each way, 5 days a week.
Is 20 mpg good? No. Beats 22% of 2026 cars.
MPG by year
Rivals
| Car | Cheapest trim | MPG or range | Compare |
|---|---|---|---|
| 2023 Mercedes-Benz GLS | GLS 450 4MATIC AWD | 20 mpg | |
| 2023 Cadillac Escalade ESV | Luxury RWD | 16 mpg | |
| 2023 Land Rover Range Rover Sport | P360 SE AWD | 22 mpg | |
| 2023 Tesla Model X | Standard AWD | 348 mi range | |
| 2023 Lincoln Navigator | Standard 4x2 | 19 mpg | Compare |
| 2023 BMW iX | xDrive50 AWD | 324 mi range | |
| 2023 Cadillac Escalade | Luxury RWD | 16 mpg | Compare |
What this cannot tell you
EPA ratings. Your own mpg will differ.
Gas prices change by state and by week.
- 2 or more sources
- 1 source
- Model-level, rule or estimate
- Sources disagree