2010 Buick Lacrosse/Allure
4 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Lacrosse/Allure | 17 | 26 | 20 | Regular Gasoline | Front-Wheel Drive | 3L 6-cyl | Automatic (S6) |
| Lacrosse/Allure | 17 | 27 | 21 | Regular Gasoline | Front-Wheel Drive | 3.6L 6-cyl | Automatic (S6) |
| Lacrosse/Allure | 19 | 30 | 23 | Regular Gasoline | Front-Wheel Drive | 2.4L 4-cyl | Automatic (S6) |
| Lacrosse/Allure AWD | 16 | 25 | 19 | Regular Gasoline | 4-Wheel or All-Wheel Drive | 3L 6-cyl | Automatic (S6) |