2003 Bentley Arnage MPG & Specs — Real Fuel Cost
Quick answer
The 2003 Bentley Arnage gets an EPA-estimated 9/13 MPG (city/highway) and 11 MPG combined, with an estimated $6,900/year fuel cost and 807.909 g/mi CO₂. Engine: 6.8 L 8-cyl.
The 2003 Bentley Arnage with the 6.8-liter 8-cylinder premium gasoline engine returns an EPA-estimated 9 MPG in the city and 13 MPG on the highway, for a combined 11 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 6.8 L 8-cyl |
| Transmission | Automatic 4-spd |
| Drive | Rear-Wheel Drive |
| Fuel type | Premium Gasoline |
| Vehicle class | Midsize Cars |
| MPG — city | 9 |
| MPG — highway | 13 |
| MPG — combined | 11 |
| Annual fuel cost* | $6,900 |
| CO₂ tailpipe | 807.909 g/mi |
| EPA GHG score | — |
How efficient is it?
With a combined 11 MPG, the 2003 Bentley Arnage sits in the low range for fuel economy. That is roughly 57% thirstier than the typical Midsize Cars of its era (26 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $6,900 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2003 Bentley Arnage. Over five years that is roughly $34,500 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2003 Bentley Arnage emits approximately 807.909 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.