2018 BMW 3 Series
Compact Cars · Rear-Wheel Drive · Diesel
36
Combined MPG
31
City MPG
43
Highway MPG
—
Safety Rating
📊 Key Statistics — 2018 BMW 3 Series
- Combined fuel economy: 36 MPG (31 city / 43 highway)
- Annual fuel cost: $2,250
- CO₂ emissions: 285 grams/mile
Specifications
| Make | BMW · Company Profile |
| Model | 3 Series |
| Year | 2018 |
| Class | Compact Cars |
| Drive | Rear-Wheel Drive |
| Transmission | Automatic (S8) |
| Fuel Type | Diesel |
| Cylinders | 4 |
| Engine Size | 2.0L |
EPA Scores
| Fuel Economy Score | 8/10 |
| Greenhouse Gas Score | 7/10 |
| You Save/Spend vs Average | $-500 over 5 years |
Annual Fuel Cost
| Annual Fuel Cost (15K mi, $3.50/gal) | $1458 |
| Monthly Fuel Cost | $122 |
| Cost per Mile (fuel only) | $10¢ |
Based on 15,000 miles/year and $3.50/gallon national average.
Compare This Car
BMW 3 Series — MPG by Year
| Year | MPG | |
|---|---|---|
| 2026 | 31 | ↓ |
| 2025 | 31 | ↓ |
| 2024 | 29 | ↓ |
| 2023 | 29 | ↓ |
| 2022 | 30 | ↓ |
| 2021 | 30 | ↓ |
| 2020 | 30 | ↓ |
| 2019 | 30 | ↓ |
| 2017 | 36 | = |
| 2016 | 35 | ↓ |
Similar 2018 Compact Cars
- Volkswagen Golf/GTI — 119 MPG
- Ford Focus — 107 MPG
- Toyota Prius c — 46 MPG
- Chevrolet Volt — 42 MPG
- Mitsubishi Mirage — 39 MPG
- Chevrolet Cruze — 37 MPG
- Audi A3 — 36 MPG
- Jaguar XE — 36 MPG