Does the 1985 Oldsmobile Firenza take premium or regular gas?

The EPA lists the 1985 Oldsmobile Firenza 1.8L 4-cyl, Automatic 3-spd, FWD as taking regular. Combined MPG is 24, and the EPA estimates about $2,600 a year in fuel.

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1985 Oldsmobile Firenza — 1.8L 4-cyl, Automatic 3-spd, FWD

This 1985 Oldsmobile Firenza (1.8L 4-cyl, Automatic 3-spd, FWD) takes regular (87-octane) gasoline. REGULAR

MPG combined (21 city / 29 hwy)

$2,600

est. fuel cost / year (EPA, 15k mi)

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tailpipe CO₂

Other 1985 Oldsmobile Firenza trims

Trim	Fuel	MPG	Fuel/yr
1.8L 4-cyl, 5-spd manual, FWD	REGULAR	26	$2,400
2.0L 4-cyl, 4-spd manual, FWD	REGULAR	26	$2,400
2.0L 4-cyl, 4-spd manual, FWD	REGULAR	25	$2,500
2.0L 4-cyl, Automatic 3-spd, FWD	REGULAR	24	$2,600
2.0L 4-cyl, Automatic 3-spd, FWD	REGULAR	22	$2,850
2.8L 6-cyl, Automatic 3-spd, FWD	REGULAR	19	$3,300
2.8L 6-cyl, Automatic 3-spd, FWD	REGULAR	19	$3,300
2.8L 6-cyl, 4-spd manual, FWD	REGULAR	18	$3,450
2.8L 6-cyl, 4-spd manual, FWD	REGULAR	18	$3,450

EPA fuel type: Regular · class: Compact Cars · retrieved 2026-06-14.