2018 BMW X6
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2018 BMW X6 is sold in the U.S. with gasoline power. The EPA lists 4 configurations for this model year, with combined economy from 16 to 21 MPG and an estimated annual fuel cost of $3,800 to $5,000 at 15,000 miles.
Key numbers
| Model year | 2018 |
|---|---|
| Vehicle class | Standard Sport Utility Vehicle 4WD |
| Fuel type(s) | Gasoline |
| Combined economy | 16-21 MPG |
| Best / worst combined | 21 / 16 MPG |
| Annual fuel cost | $3,800-$5,000 |
| Tailpipe CO₂ | 426-549 g/mi |
| EPA smog rating | 3-3 / 10 |
What it costs to fuel
Across its configurations, the 2018 X6 costs about $3,800 to $5,000 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $4,375. Over five years that is about $21,875 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this X6 configuration spends about $7,500 more on fuel over five years.
For context, the average combined economy of standard sport utility vehicle 4wd in this dataset is about 23 MPG. The X6 sits roughly 4 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| X6 sDrive35i | 3.0L 6-cyl turbo | Rear-Wheel | Automatic | Gasoline | 21 MPG | $3,800 |
| X6 xDrive35i | 3.0L 6-cyl turbo | All-Wheel | Automatic | Gasoline | 20 MPG | $4,000 |
| X6 xDrive50i | 4.4L 8-cyl turbo | All-Wheel | Automatic | Gasoline | 17 MPG | $4,700 |
| X6 M | 4.4L 8-cyl turbo | All-Wheel | Automatic | Gasoline | 16 MPG | $5,000 |
Emissions, safety and size
The 2018 X6 records tailpipe CO₂ of 426-549 g/mi, an EPA smog rating of 3-3 out of 10. The EPA classifies it as standard sport utility vehicle 4wd.
Compare this car
Open the comparison tool to line this 2018 X6 up against any other vehicle in the database, or jump to other years and trims from the 2018 BMW X6 overview.
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.