Mercedes-Benz GLS 600 Gas Mileage (2025-2026)

The Mercedes-Benz GLS 600 gas mileage is 15 to 16 miles per gallon as specified in our data below, organized by trim, option package, and model year.

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For example, the 2026 Mercedes-Benz GLS 600 Maybach 4MATIC trim model has a combined gas mileage of 15 miles per gallon, while the 2025 Mercedes-Benz GLS 600 4MATIC has a combined gas mileage of 16 miles per gallon.

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In the city, the GLS 600 gas mileage is 13 miles per gallon.

On the highway, the GLS 600 gas mileage is 18 miles per gallon.

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.

2026 Mercedes-Benz GLS 600 Gas Mileage

The 2026 Mercedes-Benz GLS 600 gas mileage is 15 miles per gallon combined.

In the city, the 2026 GLS 600 gas mileage is 13 miles per gallon.

On the highway, the 2026 GLS 600 gas mileage is 18 miles per gallon.

2025 Mercedes-Benz GLS 600 Gas Mileage

The 2025 Mercedes-Benz GLS 600 gas mileage is 16 miles per gallon combined.

In the city, the 2025 GLS 600 gas mileage is 13 miles per gallon.

On the highway, the 2025 GLS 600 gas mileage is 18 miles per gallon.