BMW 8 Series MPG by Year
Here's the official EPA BMW 8 Series MPG for every model year from 1991 to 2026.
8 Series MPG by Year and Version
The EPA has rated 85 configurations of the 8 Series. Pick a year to see each engine and drivetrain.
| Version | Engine | Transmission | Drive | City | Hwy | Combined | EPA |
|---|---|---|---|---|---|---|---|
| 840i CoupePremium Gasoline | 3.0L 6-cyl | Auto (S8) | RWD | 21 | 29 | 24 | View |
| 840i xDrive CoupePremium Gasoline | 3.0L 6-cyl | Auto (S8) | AWD | 21 | 29 | 24 | View |
| 840i ConvertiblePremium Gasoline | 3.0L 6-cyl | Auto (S8) | RWD | 21 | 29 | 24 | View |
| 840i xDrive ConvertiblePremium Gasoline | 3.0L 6-cyl | Auto (S8) | AWD | 21 | 29 | 24 | View |
| 840i Gran CoupePremium Gasoline | 3.0L 6-cyl | Auto (S8) | RWD | 21 | 29 | 24 | View |
| 840i xDrive Gran CoupePremium Gasoline | 3.0L 6-cyl | Auto (S8) | AWD | 21 | 29 | 24 | View |
| M850i xDrive CoupePremium Gasoline | 4.4L 8-cyl | Auto (S8) | AWD | 17 | 24 | 19 | View |
| M850i xDrive ConvertiblePremium Gasoline | 4.4L 8-cyl | Auto (S8) | AWD | 17 | 24 | 19 | View |
| M850i xDrive Gran CoupePremium Gasoline | 4.4L 8-cyl | Auto (S8) | AWD | 17 | 24 | 19 | View |
8 Series MPG Over the Years
Each bar shows the range of combined MPG across every 8 Series configuration the EPA rated that year, from the thirstiest version to the most efficient. Hover or tap a year to see the numbers.
Years When 8 Series Fuel Economy Changed
The 8 Series's ratings stay flat for long stretches. These are the model years where something changed enough to matter when you're comparing used ones.
- 1994: The top combined rating rises to 16 MPG, up from 13 MPG the year before.
- 2019: All-wheel drive becomes available. The best all-wheel drive version is rated at 20 MPG combined.
- 2020: The top combined rating rises to 25 MPG, up from 20 MPG the year before.
How the 8 Series Compares
The EPA rated 18 subcompact cars for 2026. The best 8 Series version, at 24 MPG combined, ties for 10th with 1 other model of 18. Combined ratings in the class run from 18 to 44 MPG, with a median of 25. Plug-in hybrids and electric models are ranked separately.
| Rank | Model | Combined |
|---|---|---|
| 1 | Honda Prelude | 44 MPG |
| 2 | MINI Cooper | 32 MPG |
| 3 | BMW 4 Series | 31 MPG |
| 4 | BMW 2 Series | 30 MPG |
| 4 | MINI John Cooper Works | 30 MPG |
| 10 | BMW 8 Series | 24 MPG |
What Does a 8 Series Cost to Fuel?
Pick a 8 Series, then enter your gas price and how much you drive. The math uses the EPA city and highway ratings, weighted by how much of your driving happens in each.
8 Series MPG Questions
Which 8 Series year gets the best gas mileage?
The 2020 to 2022 840i Coupe holds the top EPA rating at 25 MPG combined (23 city, 30 highway). Among 2026 models, the 840i Coupe is rated at 24 MPG combined.
Does all-wheel drive hurt 8 Series fuel economy?
Not by much. On the 2026 8 Series, the best rear-wheel drive version is rated at 24 MPG combined and the best all-wheel drive version at 24 MPG.
Why doesn't my 8 Series match the EPA numbers?
EPA ratings come from standardized lab tests so every car is measured the same way. Your results depend on speed, climate, idling, cargo, tire pressure and upkeep. The ratings are best for comparing one car against another. To track your own numbers, try the MPG calculator.
Keep Going
Where These Numbers Come From
Every figure on this page comes from the U.S. EPA fuel economy dataset on fueleconomy.gov, pulled together by Cedrick Reese. The file lists 85 ratings for the BMW 8 Series from 1991 to 2026. Each row in the table links to the matching EPA vehicle record, so you can check any figure against the source. Ratings from before 2008 use the EPA's revised estimates, which put older vehicles on the same scale as newer ones. The page is rebuilt whenever the EPA publishes an updated file, which picks up new model years and any rating corrections. The cost calculator uses the gas price you enter rather than a national average, so the result fits where you live.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA
- Vehicle data field definitions, including the revised 1984-2007 estimates, fueleconomy.gov
- Factors that affect fuel economy, fueleconomy.gov