2010 Buick Lacrosse/Allure MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2010 Buick Lacrosse/Allure.
The 2010 Buick Lacrosse/Allure has 3 model options: Automatic (S6) 6-cyl, 3.0 L, Automatic (S6) 6-cyl, 3.6 L and Automatic (S6) 4-cyl, 2.4 L.
The 2010 Buick Lacrosse/Allure Automatic (S6) 6-cyl, 3.0 L runs on regular gasoline and is in the Midsize Cars car class.
The 2010 Buick Lacrosse/Allure Automatic (S6) 6-cyl, 3.6 L runs on regular gasoline and is in the Midsize Cars car class.
The 2010 Buick Lacrosse/Allure Automatic (S6) 4-cyl, 2.4 L runs on regular gasoline and is in the Midsize Cars car class.
🛣 How Many Miles per Gallon (MPG) Does a 2010 Buick Lacrosse/Allure Get?
Across all models, the combined average MPG for the 2010 Buick Lacrosse/Allure is 21 miles per gallon.
The table below breaks down the MPG for each model option:
| Model Option | Combined MPG | City MPG | Highway MPG |
|---|---|---|---|
| Automatic (S6) 6-cyl, 3.0 L | 20 | 17 | 26 |
| Automatic (S6) 6-cyl, 3.6 L | 21 | 17 | 27 |
| Automatic (S6) 4-cyl, 2.4 L | 23 | 19 | 30 |
💵 What is the Average Yearly Fuel Cost for a 2010 Buick Lacrosse/Allure?
The average fuel costs for all models of the 2010 Buick Lacrosse/Allure is $2,950.
The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
Comparing a 2010 Buick Lacrosse/Allure to an average vehicle over 5 years, you will spend $3,250 more on fuel.
The table below shows the fuel costs and 5-year save/spend for each model option:
| Model Option | Fuel Cost | 5-Year Save/Spend |
|---|---|---|
| Automatic (S6) 6-cyl, 3.0 L | $3,150 | spend $4,250 more |
| Automatic (S6) 6-cyl, 3.6 L | $3,000 | spend $3,500 more |
| Automatic (S6) 4-cyl, 2.4 L | $2,700 | spend $2,000 more |
🛢 How Many Barrels of Petroleum Does a 2010 Buick Lacrosse/Allure Consume?
Across all models, the average number barrels of petroleum that the 2010 Buick Lacrosse/Allure will consume in one year is 14 barrels.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
| Model Option | Barrels |
|---|---|
| Automatic (S6) 6-cyl, 3.0 L | 15 |
| Automatic (S6) 6-cyl, 3.6 L | 14 |
| Automatic (S6) 4-cyl, 2.4 L | 13 |
💨 How Many Grams of CO2 Does a 2010 Buick Lacrosse/Allure Emit?
The 2010 Buick Lacrosse/Allure will emit an average of about -15,000 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the 2010 Buick Lacrosse/Allure.
Overview
The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 3 2010 Buick Lacrosse/Allure model options.
Automatic (S6) 6-cyl, 3.0 L
The table below contains all of the details we have for the 2010 Buick Lacrosse/Allure Automatic (S6) 6-cyl, 3.0 L:
| City MPG | 17 |
|---|---|
| Highway MPG | 26 |
| Combined MPG | 20 |
| Save/Spend vs Average Car | Spend $4,250 |
| Fuel Cost | $3,150 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 15 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Front-Wheel Drive |
| Cylinders | 6 |
| Displacement | 3 |
| Transmission | Automatic (S6) |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Automatic (S6) 6-cyl, 3.6 L
The table below contains all of the details we have for the 2010 Buick Lacrosse/Allure Automatic (S6) 6-cyl, 3.6 L:
| City MPG | 17 |
|---|---|
| Highway MPG | 27 |
| Combined MPG | 21 |
| Save/Spend vs Average Car | Spend $3,500 |
| Fuel Cost | $3,000 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 14 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Front-Wheel Drive |
| Cylinders | 6 |
| Displacement | 3.6 |
| Transmission | Automatic (S6) |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Automatic (S6) 4-cyl, 2.4 L
The table below contains all of the details we have for the 2010 Buick Lacrosse/Allure Automatic (S6) 4-cyl, 2.4 L:
| City MPG | 19 |
|---|---|
| Highway MPG | 30 |
| Combined MPG | 23 |
| Save/Spend vs Average Car | Spend $2,000 |
| Fuel Cost | $2,700 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 13 |
| Grams of CO2 | -15,000 |
| Trees Needed to Offset | -1 |
| Drive | Front-Wheel Drive |
| Cylinders | 4 |
| Displacement | 2.4 |
| Transmission | Automatic (S6) |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/buick/lacrosse-allure/2010">2010 Buick Lacrosse/Allure MPG and Fuel Economy</a>
"2010 Buick Lacrosse/Allure MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/buick/lacrosse-allure/2010.
"2010 Buick Lacrosse/Allure MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/buick/lacrosse-allure/2010. Accessed January 3, 2026.
2010 Buick Lacrosse/Allure MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/buick/lacrosse-allure/2010.