Oldsmobile Delta 88 Fuel Economy History

MPG by year — EPA official data.

Best MPG Year

1984

21 MPG combined

Latest Model

1988

20 MPG combined

Year	Engine	City	Hwy	Combined	Fuel Cost/yr
1988	Regular	17	26	20	$3,400	Details →
1984	Diesel Diesel	18	27	21	$4,050	Details →