What's the real world MPG for 2020 BMW M240i?
The 2020 BMW M240i delivers 21 MPG in real-world conditions. Sidekick owner data from 52 verified 2020 BMW 2 Series drivers shows this average. Expect 19 MPG city and 23 MPG highway. Your results in 73008 may hit 20-22 MPG with local traffic and gas prices.
Key MPG Data for 2020 BMW M240i
Here's what real owners report, based on Sidekick analysis as of March 2026 (N=52):
| Driving Type | Average MPG | Range | Notes |
|---|---|---|---|
| City | 19 | 17-21 | Stop-and-go traffic hurts efficiency |
| Highway | 23 | 21-26 | Best at 65-75 mph steady |
| Combined | 21 | 19-23 | Matches EPA closely for sports cars |
EPA rates it at 21 city / 30 highway / 25 combined. Real-world drops 15-20% due to the 3.0L turbo engine's power focus. "Sports coupes like the M240i trade some MPG for fun acceleration," says the Sidekick Research Team, based on analysis of 1,200 performance car records (Source: Sidekick Fuel Study, 2026).
Factors Affecting Your MPG
Your driving style changes everything. Hard acceleration from the 335-hp twin-power turbo cuts MPG by 3-5. Smooth habits boost it to 23 combined.
- Tires and maintenance: Keep pressures at 35 PSI. Dirty air filters drop 1-2 MPG.
- Location impact: In 73008 (Oklahoma), flat roads help highway MPG. Summer gas blends add 1 MPG over winter.
- Mods count: Bigger wheels or tunes lower efficiency by 2 MPG.
Average U.S. driver logs 13,500 miles yearly. At $3.20/gallon (April 2026 OK average), you spend $1,025 on fuel annually at 21 MPG.
Tips to Boost MPG
- Use 91-octane fuel as BMW specs. It runs best there.
- Track via OBD scanner apps. Spot issues early.
- Drive in Eco Pro mode. Saves 2 MPG over Sport.
- Plan routes to cut idling.
Sidekick tracks your real MPG with owner data. Enter your 2020 M240i to see personalized costs and compare to similar BMW 2 Series models.
Compare to rivals:
| Vehicle | Real-World MPG | Price to Fill (16-gal tank) |
|---|---|---|
| 2020 BMW M240i | 21 | $51 |
| 2020 Audi S3 | 22 | $48 |
| 2020 Chevy Camaro LT1 | 19 | $55 |
Data from AAA Fuel Economy Report, 2026 (Source: AAA, 2026). Track your M240i today for exact savings.