← all 1990 Buick Century trims
1990 Buick Century — 3.3L 6-cyl, Automatic 4-spd, FWD
This 1990 Buick Century (3.3L 6-cyl, Automatic 4-spd, FWD) takes regular (87-octane) gasoline. REGULAR
21
MPG combined (18 city / 26 hwy)
$2,950
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 1990 Buick Century trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 2.5L 4-cyl, Automatic 3-spd, FWD | REGULAR | 23 | $2,700 |
| 3.3L 6-cyl, Automatic 3-spd, FWD | REGULAR | 20 | $3,100 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.