Meaning of the word "gas mileage" in English

What does "gas mileage" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

gas mileage

US /ˈɡæs ˌmaɪ.lɪdʒ/
UK /ˈɡæs ˌmaɪ.lɪdʒ/

Noun

the number of miles a vehicle can travel on a gallon of gasoline

Example:
This new car has excellent gas mileage.
I'm looking for a car with better gas mileage to save on fuel costs.