FuelFacts

Does the 1985 Chevrolet Cavalier need premium gas?

Every trim takes regular — no premium needed.

Trim (engine / transmission)FuelMPGFuel/yr
2.0L 4-cyl, 4-spd manual, FWDREGULAR26$2,400
2.0L 4-cyl, 4-spd manual, FWDREGULAR25$2,500
2.0L 4-cyl, 5-spd manual, FWDREGULAR24$2,600
2.0L 4-cyl, Automatic 3-spd, FWDREGULAR24$2,600
2.0L 4-cyl, 5-spd manual, FWDREGULAR24$2,600
2.0L 4-cyl, Automatic 3-spd, FWDREGULAR22$2,850
2.8L 6-cyl, Automatic 3-spd, FWDREGULAR19$3,300
2.8L 6-cyl, Automatic 3-spd, FWDREGULAR18$3,450
2.8L 6-cyl, 4-spd manual, FWDREGULAR18$3,450
2.8L 6-cyl, 4-spd manual, FWDREGULAR18$3,450
The EPA records the fuel each version was tested on. Whether premium is strictly required or just recommended is an owner's-manual detail the EPA dataset doesn't include — so we don't guess it.

10 trim(s) · EPA FuelEconomy.gov · retrieved 2026-06-14.