2008 Mercury Mariner Hybrid FWD MPG & Specs — Real Fuel Cost
Quick answer
The 2008 Mercury Mariner Hybrid FWD gets an EPA-estimated 34/30 MPG (city/highway) and 32 MPG combined, with an estimated $1,900/year fuel cost and 277.719 g/mi CO₂. Engine: 2.3 L 4-cyl.
The 2008 Mercury Mariner Hybrid FWD with the 2.3-liter 4-cylinder regular gasoline engine returns an EPA-estimated 34 MPG in the city and 30 MPG on the highway, for a combined 32 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 2.3 L 4-cyl |
| Transmission | Automatic (variable gear ratios) |
| Drive | Front-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Sport Utility Vehicle - 2WD |
| MPG — city | 34 |
| MPG — highway | 30 |
| MPG — combined | 32 |
| Annual fuel cost* | $1,900 |
| CO₂ tailpipe | 277.719 g/mi |
| EPA GHG score | — |
How efficient is it?
With a combined 32 MPG, the 2008 Mercury Mariner Hybrid FWD sits in the good range for fuel economy. That is about 68% better than the typical Sport Utility Vehicle - 2WD of its era (19 MPG class average), making it one of the more efficient choices in its class.
Fuel economy and running costs
At about $1,900 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2008 Mercury Mariner Hybrid FWD. Over five years that is roughly $9,500 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2008 Mercury Mariner Hybrid FWD emits approximately 277.719 grams of CO₂ per mile at the tailpipe. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.