Mercedes-Benz GLS580 4matic MPG by year — every rating on record
The Mercedes-Benz GLS580 4matic has a combined EPA fuel economy rating for 7 model years, from 2020 to 2026. Across those years its best rated version returned 18 mpg (2020) and its thirstiest returned 16 mpg (2024). The EPA record holds 7 configurations for this nameplate, most recently a Standard Sport Utility Vehicle 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2020 | 1 | 18 mpg | 18 mpg | #54 of 92 (42th pct) | 4-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2021 | 1 | 18 mpg | 18 mpg | #65 of 104 (38th pct) | 4-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2022 | 1 | 18 mpg | 18 mpg | #85 of 126 (33th pct) | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2023 | 1 | 18 mpg | 18 mpg | #95 of 139 (32th pct) | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2024 | 1 | 16 mpg | 16 mpg | #150 of 166 (10th pct) | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2025 | 1 | 16 mpg | 16 mpg | #176 of 192 (8th pct) | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2026 | 1 | 16 mpg | 16 mpg | #181 of 191 (5th pct) | All-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Mercedes-Benz GLS580 4matic placed highest in 2020 at #54 of 92, and lowest in 2026 at #181 of 191. It spent 0 of its 7 ranked years in the top half of its class.
Every configuration on record
All 7 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 4.0L 8-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 14 | 20 | 16 | 718.8 | 18.6 | $4,850 | 539 | 3/10 |
| 2025 | 4.0L 8-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 14 | 19 | 16 | 718.8 | 18.6 | $4,850 | 548 | 3/10 |
| 2024 | 4.0L 8-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 14 | 20 | 16 | 718.8 | 18.6 | $4,850 | 554 | 3/10 |
| 2023 | 4.0L 8-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 16 | 21 | 18 | 638.9 | 16.5 | $4,300 | 499 | 4/10 |
| 2022 | 4.0L 8-cyl All-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 16 | 21 | 18 | 638.9 | 16.5 | $4,300 | 498 | 3/10 |
| 2021 | 4.0L 8-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 16 | 21 | 18 | 638.9 | 16.5 | $4,300 | 491 | 3/10 |
| 2020 | 4.0L 8-cyl 4-Wheel Drive Automatic 9-spd Premium | SIDI; Mild Hybrid, turbocharged, Hybrid, start-stop | 16 | 21 | 18 | 638.9 | 16.5 | $4,300 | 487 | 3/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 0 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2023 → 2024 | 18 → 16 mpg | -2 mpg | 719 gal |
What GLS580 4matic fuel costs over a year
At the EPA's 11,500 miles a year, the 2026 Mercedes-Benz GLS580 4matic burns 719 to 719 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $2,156 | $2,156 | $0 |
| $3.50/gal | $2,516 | $2,516 | $0 |
| $4.00/gal | $2,875 | $2,875 | $0 |
EPA’s own estimate for the 2026 model year is $4,850 to $4,850 a year in fuel, or $13,000 more than the average new vehicle over five years.
How it compares with other Standard Sport Utility Vehicle 4WD
Across the 317 nameplates EPA classifies as Standard Sport Utility Vehicle 4WD, the median best combined rating is 22 mpg. At 16 mpg the Mercedes-Benz GLS580 4matic is 6 mpg below the median, which is worth about $686 a year at $3.50 a gallon.
- All Standard Sport Utility Vehicle 4WD rankings — every nameplate in the class, best to worst.
Other Mercedes-Benz nameplates
Every Mercedes-Benz model compared → — all nameplates ranked by best combined rating, with what each one costs a year.