2015 head-to-head · Small SUV
2015 Audi Q5 Diesel vs Lexus RX
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 · 26 MPG
The 2015 Audi Q5 Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, it costs about $2,135 a year to fuel (26 MPG), versus $2,214 for the 2015 Lexus RX (21 MPG). That's roughly $80 a year, or about $398 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 Q5 Diesel
- Lexus RX
Side by side
| Audi Q5 Diesel | Lexus RX | |
|---|---|---|
| $2,135 | Your annual fuel cost | $2,214 |
| 26 MPG | Combined efficiency | 21 MPG |
| 23 MPG | City | 18 MPG |
| 30 MPG | Highway | 25 MPG |
| 392 g/mi | Tailpipe CO₂ (g/mi) | 429 g/mi |
| 6/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Diesel | Powertrain | Gas |
| Diesel | Fuel | Regular gasoline |
| 3.0L 6-cyl turbo | Engine / motor | 3.5L 6-cyl |
| 8-speed automatic | Transmission | 6-speed automatic |
| AWD | Drivetrain | FWD |
✓ 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 Q5 Diesel vs Lexus RX across model years
- Audi Q5 Diesel
- Lexus RX
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 60 2015 small SUVs, the Audi Q5 Diesel ranks 38th and the Lexus RX 39th for lowest fuel cost.
The powertrains differ: the Audi Q5 Diesel is a diesel, while the Lexus RX is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2015 Audi Q5 Diesel or the 2015 Lexus RX?
Measured by cost to drive, the Audi Q5 Diesel. The Audi Q5 Diesel is rated 26 MPG combined and the Lexus RX 21 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Audi Q5 Diesel vs. the Lexus RX per year?
At 15,000 miles a year with $3.70/gal diesel fuel and $3.10/gal regular gas, about $2,135 for the Audi Q5 Diesel and $2,214 for the Lexus RX.
Audi Q5 Diesel vs Lexus RX in other years
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