Mercedes-Benz GLS450 4matic MPG by year

EPA combined, city, and highway gas mileage for every Mercedes-Benz GLS450 4matic model year.

Year	Combined	City	Highway
2026	21	19	24
2025	21	19	24
2024	21	19	24
2023	20	18	23
2022	20	18	24
2021	21	20	24
2020	21	19	23
2019	18	16	22
2018	19	17	22
2017	19	17	22