2020 · Subcompact Car · Gas
2020 BMW 8 Series MPG & fuel economy
The 2020 BMW 8 Series is a subcompact car offered in 4 EPA-rated configurations. The most efficient version returns 25 MPG combined (23 city / 30 highway) on premium gasoline. Across the lineup, combined ratings range from 23 to 25 MPG. That's up 5 MPG from the 2019 model. Among 39 subcompact cars rated for 2020, it ranks 19th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,370 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2020 BMW 8 Series's fuel average is 10.6 km/L (9.4 L/100 km), or 25 MPG combined: 9.8 km/L in the city and 12.8 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 23 | 9.8 | 10.2 |
| Highway | 30 | 12.8 | 7.8 |
| Combined | 25 | 10.6 | 9.4 |
How it ranks among 2020 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
8 Series MPG across model years
Full history →4 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.0L 6-cyl turbo · 8-speed automatic 840i Coupe |
Gas | 23 MPG | 30 MPG | 25 MPG | — | $2,370 |
| RWD · 3.0L 6-cyl turbo · 8-speed automatic 840i Convertible |
Gas | 22 MPG | 29 MPG | 24 MPG | — | $2,469 |
| AWD · 3.0L 6-cyl turbo · 8-speed automatic 840i xDrive Coupe |
Gas | 21 MPG | 27 MPG | 23 MPG | — | $2,576 |
| AWD · 3.0L 6-cyl turbo · 8-speed automatic 840i xDrive Convertible |
Gas | 20 MPG | 27 MPG | 23 MPG | — | $2,576 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 3.0L 6-cyl turbo
- Transmission
- 8-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 81 cu ft
- Cargo volume
- 15 cu ft
- Tailpipe CO₂
- 347 g/mi
- EPA fuel economy score
- 5/10
- EPA greenhouse gas score
- 5/10
2020 BMW 8 Series vs. rivals
Compare the 2020 8 Series
With any other car from any year, including other 8 Series model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2020 BMW 8 Series?
Up to 25 MPG combined (23 city / 30 highway); ratings range from 23 to 25 MPG depending on configuration.
What fuel does the 2020 BMW 8 Series use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 2020 BMW 8 Series?
The 2020 BMW 8 Series's fuel average is 10.6 km/L (9.4 L/100 km), or 25 MPG combined: 9.8 km/L in the city and 12.8 km/L on the highway.
How much does it cost to fuel the 2020 BMW 8 Series per year?
About $2,370 at 15,000 miles a year with $3.95/gal premium gas, or $15.80 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.