mpg

Từ điển Oxford Advanced Learner 8th

mpg [mpg] BrE [ˌem piː ˈdʒiː] NAmE [ˌem piː ˈdʒiː] abbreviation
miles per gallon (used for saying how much petrol/gas a vehicle uses)
•It does 40 mpg.
• (NAmE)It gets 40 mpg.