The Mercedes-Benz GLS 63 gas mileage is 15.5 to 17 miles per gallon as specified in our data below, organized by trim, option package, and model year.
For example, the 2019 Mercedes-Benz GLS 63 GLS AMG 63 4MATIC trim model has a combined gas mileage of 15.5 miles per gallon, while the 2023 Mercedes-Benz GLS 63 AMG 4MATIC+ has a combined gas mileage of 17 miles per gallon.
In the city, the GLS 63 gas mileage is 13 to 14 miles per gallon depending on the trim and model year.
On the highway, the GLS 63 gas mileage is 18 to 19 miles per gallon depending on the trim and model year.
Note: The gas mileage shown for hybrid vehicles is the miles per gallon equivalent.
Check out the Gas Mileage specifications for other makes and models.
2025 Mercedes-Benz GLS 63 Gas Mileage
The 2025 Mercedes-Benz GLS 63 gas mileage is 16 miles per gallon combined.
In the city, the 2025 GLS 63 gas mileage is 14 miles per gallon.
On the highway, the 2025 GLS 63 gas mileage is 18 miles per gallon.
2025 Mercedes-Benz GLS 63 Gas Mileage (Imperial)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| 4MATIC+ Hybrid |
4.0L | Turbo | 8 Cyl. | Hybrid | 9 Spd Auto w/OD | AWD |
14 city mpg | 18 hwy mpg | 16 combined mpg |
2025 Mercedes-Benz GLS 63 Gas Mileage (Metric)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| 4MATIC+ Hybrid |
4.0L | Turbo | 8 Cyl. | Hybrid | 9 Spd Auto w/OD | AWD |
16.8 city L/100 km | 13.1 hwy L/100 km | 14.7 combined L/100 km |
2023 Mercedes-Benz GLS 63 Gas Mileage
The 2023 Mercedes-Benz GLS 63 gas mileage is 17 miles per gallon combined.
In the city, the 2023 GLS 63 gas mileage is 14 miles per gallon.
On the highway, the 2023 GLS 63 gas mileage is 19 miles per gallon.
2023 Mercedes-Benz GLS 63 Gas Mileage (Imperial)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| AMG 4MATIC+ SUV |
4.0L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
14 city mpg | 19 hwy mpg | 17 combined mpg |
2023 Mercedes-Benz GLS 63 Gas Mileage (Metric)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| AMG 4MATIC+ SUV |
4.0L | Twin Turbo | V8 | 9 Spd Auto w/OD | AWD |
16.8 city L/100 km | 12.4 hwy L/100 km | 13.8 combined L/100 km |
2019 Mercedes-Benz GLS 63 Gas Mileage
The 2019 Mercedes-Benz GLS 63 gas mileage is 15.5 miles per gallon combined.
In the city, the 2019 GLS 63 gas mileage is 13 miles per gallon.
On the highway, the 2019 GLS 63 gas mileage is 18 miles per gallon.
2019 Mercedes-Benz GLS 63 Gas Mileage (Imperial)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS AMG 63 4MATIC SUV |
5.5L | Twin Turbo | V8 | 7 Spd Auto w/OD | AWD |
13 city mpg | 18 hwy mpg | 15.5 combined mpg |
2019 Mercedes-Benz GLS 63 Gas Mileage (Metric)
| Trim |
Engine | Transmission | Drivetrain |
City | Highway | Combined Mileage |
| GLS AMG 63 4MATIC SUV |
5.5L | Twin Turbo | V8 | 7 Spd Auto w/OD | AWD |
18.0 city L/100 km | 13.0 hwy L/100 km | 15.0 combined L/100 km |
Mercedes-Benz GLS 63 Gas Mileage Data Brought To You By AutoPadre