2024 Benz Glc Gas Mileage. How many miles per gallon does a mercedes glc 300 get on the highway? The gas tank size of the 2024 glc is 17.4 gallons for all models.
The second generation of the glc continues to be available in suv and coupe body. And finally, the gas tank size is 17.4 gallons for all models for the 2024 model year.