2004 Buick Regal — 3.8L 6-cyl, Automatic 4-spd, FWD
This 2004 Buick Regal (3.8L 6-cyl, Automatic 4-spd, FWD) takes regular (87-octane) gasoline. REGULAR
21
MPG combined (18 city / 28 hwy)
$2,950
est. fuel cost / year (EPA, 15k mi)
—
tailpipe CO₂
Other 2004 Buick Regal trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 3.8L 6-cyl, Automatic 4-spd, FWD | PREMIUM | 20 | $3,850 |
EPA fuel type: Regular · class: Midsize Cars · retrieved 2026-06-14.