Buick Lacrosse/Allure
21.3 MPG The 2010 Buick Lacrosse/Allure is EPA-rated at 21.3 MPG combined (17.7 city / 27.7 highway). Over 15,000 miles a year that is about 704 gallons, $2254 a year in fuel, or $0.150 per mile at $3.20/gal.
Across its full 2005–2010 run it averages 20.5 MPG, improving by 0.8 MPG over 6 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.117 | $1174 | $1761 | $2347 |
| $3.00/gal | $0.141 | $1408 | $2113 | $2817 |
| $3.20/gal | $0.150 | $1502 | $2254 | $3005 |
| $3.50/gal | $0.164 | $1643 | $2465 | $3286 |
| $4.00/gal | $0.188 | $1878 | $2817 | $3756 |
| $4.50/gal | $0.211 | $2113 | $3169 | $4225 |
| $5.00/gal | $0.235 | $2347 | $3521 | $4695 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2010 | 21.3 MPG | 17.7 | 27.7 | $2917 | 418 | 3 |
| 2009 | 20 MPG | 16.5 | 26 | $3125 | 445 | 2 |
| 2008 | 20 MPG | 16.7 | 25.7 | $3367 | 445 | 3 |
| 2007 | 20.5 MPG | 17 | 26 | $3025 | 434 | 2 |
| 2006 | 20.5 MPG | 17 | 26.5 | $3025 | 434 | 2 |
| 2005 | 20.5 MPG | 17.5 | 26 | $3025 | 434 | 2 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 261 midsize cars models tracked here, the Buick Lacrosse/Allure ranks 161 on current figures, against a class average of 27.2 MPG.
Closest more-efficient alternatives in the same class: Dodge Spirit (21.5), Lincoln MKZ AWD (21.5), Mazda 626/MX-6 (21.5), Plymouth Acclaim (21.5), Dodge Stratus (21.6).
Tailpipe CO₂ is rated at 418 grams per mile, which works out to roughly 6.3 tonnes a year at 15,000 miles.
Questions
What MPG does the Buick Lacrosse/Allure get?
The 2010 Buick Lacrosse/Allure is rated at 21.3 MPG combined by the EPA — 17.7 city and 27.7 highway. Across all 6 model years in the database it averages 20.5 MPG, ranging from 19 to 23 depending on year and trim.
How much does a Buick Lacrosse/Allure cost in fuel per year?
At 21.3 MPG and 15,000 miles a year, it burns about 704 gallons — roughly $2254 a year with fuel at $3.20 a gallon, or $0.150 per mile. The EPA's own published annual figure for the 2010 model is $2917.
Has the Buick Lacrosse/Allure become more efficient over time?
Yes. It has gone from 20.5 MPG in 2005 to 21.3 in 2010 — an improvement of 0.8 MPG, or 4% across 6 model years.
Is the Buick Lacrosse/Allure efficient for its class?
It ranks 161 of 261 in the Midsize Cars class on current figures, against a class average of 27.2 MPG. That is 5.9 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.