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2021 Mercedes-Benz GLS450 MPG

Based on data from 1 vehicles, 15 fuel-ups and 6,796 miles of driving, the 2021 Mercedes-Benz GLS450 gets a combined Avg MPG of 20.61 with a 1.46 MPG margin of error.

Below you can see a distribution of the fuel-ups with 0 outliers (0.00%) removed.

2021 Mercedes-Benz GLS450s For Sale Nearby


    2021 Mercedes-Benz GLS450 4Matic 3.0L L6 ELECTRIC/GAS Automatic 9 Speed Sport Utility
    Added Dec 2020 • 20 Fuel-ups

    Property of Zeight

  • 20.7 Avg MPG

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from other Mercedes-Benz GLS450 vehicles (View All)


Replace gear oils

If you have a rear-wheel drive car and you haven't changed y... ...

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