2008 Mercury Grand Marquis FFV MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2008 Mercury Grand Marquis FFV.
The 2008 Mercury Grand Marquis FFV runs on regular gasoline and is in the Large Cars car class.
Whether you are considering a purchase of the car, or just wanting to find out how economical and environmentally friendly (or un-friendly) your 2008 Mercury Grand Marquis FFV is, we have the information you need.
🛣 How Many Miles per Gallon (MPG) Does a 2008 Mercury Grand Marquis FFV Get?
First off, the most commonly asked question. A 2008 Mercury Grand Marquis FFV gets up to 15 miles per gallon in the city, and 23 miles per gallon on the highway.
The combined average MPG for the 2008 Mercury Grand Marquis FFV is 18 miles per gallon.
💵 What is the Average Yearly Fuel Cost for a 2008 Mercury Grand Marquis FFV?
The estimated fuel costs for the 2008 Mercury Grand Marquis FFV is $3,500 per year.
That value has 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.
If you were to compare a 2008 Mercury Grand Marquis FFV to an average vehicle over 5 years, you will spend $6,000 more on fuel.
🛢 How Many Barrels of Petroleum Does a 2008 Mercury Grand Marquis FFV Consume?
The 2008 Mercury Grand Marquis FFV will consume roughly 17 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
Overview
The table below covers all of the miles per gallon, engine specifications, and emission details we have for the 2008 Mercury Grand Marquis FFV.
| City MPG | 15 |
|---|---|
| Highway MPG | 23 |
| Combined MPG | 18 |
| Save/Spend vs Average Car | Spend $6,000 |
| Fuel Cost | $3,500 |
| Fuel Type 1 | Gasoline or E85 |
| Fuel Type 2 | E85 |
| ATV Type | FFV |
| Barrels of Petroleum | 17 |
| Drive | Rear-Wheel Drive |
| Cylinders | 8 |
| Displacement | 4.6 |
| Transmission | Automatic 4-spd |
| Vehicle Class | Large Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Related Mercury Models from 2008
If you're interested in other Mercury models from 2008, you can find them in the table below. You can click the model link to find miles per gallon and emission information for that model.
| Model | Combined MPG |
|---|---|
| Mariner 4WD | 21 |
| Mariner 4WD | 19 |
| Mariner FWD | 22 |
| Mariner FWD | 20 |
| Mariner Hybrid 4WD | 28 |
| Mariner Hybrid FWD | 32 |
| Milan | 23 |
| Milan | 23 |
| Milan | 21 |
| Milan AWD | 20 |
| Mountaineer 2WD | 16 |
| Mountaineer 2WD | 16 |
| Mountaineer 4WD | 15 |
| Mountaineer 4WD | 15 |
| Sable AWD | 19 |
| Sable FWD | 22 |
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/mercury/grand-marquis-ffv/2008">2008 Mercury Grand Marquis FFV MPG and Fuel Economy</a>
"2008 Mercury Grand Marquis FFV MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/mercury/grand-marquis-ffv/2008.
"2008 Mercury Grand Marquis FFV MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/mercury/grand-marquis-ffv/2008. Accessed January 3, 2026.
2008 Mercury Grand Marquis FFV MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/mercury/grand-marquis-ffv/2008.