Pontiac Grand Prix Turbo Fuel Economy History

MPG by year — EPA official data.

Best MPG Year

1990

18 MPG combined

Latest Model

1990

18 MPG combined

Year	Engine	City	Hwy	Combined	Fuel Cost/yr
1990	Premium	15	23	18	$4,550	Details →
1989	Premium	15	23	17	$4,800	Details →