2015 head-to-head · Midsize Car
2015 Audi A6 vs Audi A6 Diesel
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 29 MPG
The 2015 Audi A6 Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas and $3.70/gal diesel fuel, it costs about $1,914 a year to fuel (29 MPG), versus $2,116 for the 2015 Audi A6 (28 MPG). That's roughly $202 a year, or about $1,011 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi A6
- Audi A6 Diesel
Side by side
| Audi A6 | Audi A6 Diesel | |
|---|---|---|
| $2,116 | Your annual fuel cost | $1,914 |
| 28 MPG | Combined efficiency | 29 MPG |
| 25 MPG | City | 24 MPG |
| 33 MPG | Highway | 38 MPG |
| 98 cu ft | Passenger volume | 98 cu ft |
| 16 cu ft | Cargo volume | 16 cu ft |
| 320 g/mi | Tailpipe CO₂ (g/mi) | 349 g/mi |
| 7/10 | EPA fuel economy score | 7/10 |
| 7/10 | EPA greenhouse gas score | 6/10 |
| Gas | Powertrain | Diesel |
| Premium gasoline | Fuel | Diesel |
| 2.0L 4-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| CVT | Transmission | 8-speed automatic |
| FWD | Drivetrain | AWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Audi A6 vs Audi A6 Diesel across model years
- Audi A6
- Audi A6 Diesel
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 69 2015 midsize cars, the Audi A6 ranks 45th and the Audi A6 Diesel 38th for lowest fuel cost.
The powertrains differ: the Audi A6 is a conventional gas model, while the Audi A6 Diesel is a diesel.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi A6 or the 2015 Audi A6 Diesel?
Measured by cost to drive, the Audi A6 Diesel. The Audi A6 is rated 28 MPG combined and the Audi A6 Diesel 29 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi A6 vs. the Audi A6 Diesel per year?
At 15,000 miles a year with $3.95/gal premium gas and $3.70/gal diesel fuel, about $2,116 for the Audi A6 and $1,914 for the Audi A6 Diesel.
Audi A6 vs Audi A6 Diesel in other years
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