BMW 340i MPG by year — every rating on record
The BMW 340i has a combined EPA fuel economy rating for 3 model years, from 2016 to 2018. Across those years its best rated version returned 25 mpg (2016) and its thirstiest returned 23 mpg (2016). The EPA record holds 6 configurations for this nameplate, most recently a Compact Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2016 | 2 | 25 mpg | 23 mpg | #67 of 108 (38th pct) | Rear-Wheel Drive | Premium | Compact Cars |
| 2017 | 2 | 25 mpg | 23 mpg | #61 of 100 (39th pct) | Rear-Wheel Drive | Premium | Compact Cars |
| 2018 | 2 | 25 mpg | 23 mpg | #58 of 95 (39th pct) | Rear-Wheel Drive | Premium | Compact Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The BMW 340i placed highest in 2018 at #58 of 95, and lowest in 2016 at #67 of 108. It spent 0 of its 3 ranked years in the top half of its class.
Every configuration on record
All 6 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 3.0L 6-cyl Rear-Wheel Drive Manual 6-spd Premium | SIDI, turbocharged, start-stop | 19 | 29 | 23 | 500.0 | 12.9 | $3,350 | 389 | 5/10 |
| 2018 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 21 | 32 | 25 | 460.0 | 11.9 | $3,100 | 352 | 5/10 |
| 2017 | 3.0L 6-cyl Rear-Wheel Drive Manual 6-spd Premium | SIDI, turbocharged, start-stop | 19 | 29 | 23 | 500.0 | 12.9 | $3,350 | 395 | 5/10 |
| 2017 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 21 | 32 | 25 | 460.0 | 11.9 | $3,100 | 358 | 5/10 |
| 2016 | 3.0L 6-cyl Rear-Wheel Drive Manual 6-spd Premium | SIDI, turbocharged, start-stop | 20 | 29 | 23 | 500.0 | 12.9 | $3,350 | 386 | 5/10 |
| 2016 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 22 | 32 | 25 | 460.0 | 11.9 | $3,100 | 349 | 6/10 |
What 340i fuel costs over a year
At the EPA's 11,500 miles a year, the 2018 BMW 340i burns 460 to 500 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,380 | $1,500 | $120 |
| $3.50/gal | $1,610 | $1,750 | $140 |
| $4.00/gal | $1,840 | $2,000 | $160 |
EPA’s own estimate for the 2018 model year is $3,100 to $3,350 a year in fuel, or $4,250 more than the average new vehicle over five years.
How it compares with other Compact Cars
Across the 498 nameplates EPA classifies as Compact Cars, the median best combined rating is 26 mpg. At 25 mpg the BMW 340i is 1 mpg below the median, which is worth about $62 a year at $3.50 a gallon.
- All Compact Cars rankings — every nameplate in the class, best to worst.
Other BMW nameplates
Every BMW model compared → — all nameplates ranked by best combined rating, with what each one costs a year.