← all 2009 Buick Lucerne trims
2009 Buick Lucerne — 3.9L 6-cyl, Automatic 4-spd, FWD
This 2009 Buick Lucerne (3.9L 6-cyl, Automatic 4-spd, FWD) takes regular (87-octane) gasoline. REGULAR
20
MPG combined (17 city / 26 hwy)
$2,850
est. fuel cost / year (today’s prices, 15k mi)
—
tailpipe CO₂
At today's AAA national average price ($3.80/gal, 2026-07-05) — the EPA's own price/date assumption isn't exposed in the public dataset, so we recompute this from the EPA's MPG figure and a sourced current price.
Other 2009 Buick Lucerne trims
| Trim | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| 4.6L 8-cyl, Automatic 4-spd, FWD | REGULAR | 18 | $3,167 |
| 3.9L 6-cyl, Automatic 4-spd, FWD | FLEX-FUEL | 21 | $2,950 |
EPA fuel type: Regular · class: Large Cars · engine: 3.9L 6-cyl · transmission: Automatic 4-spd · drive: FWD · MPG retrieved 2026-07-24.