Achieving 36 MPG combined makes the 2018 BMW 328d a genuinely economical choice, an impressive feat for a sport sedan that prioritizes driving dynamics and comfort over outright efficiency. This isn’t just about saving money. It is about extending range and reducing your carbon footprint without sacrificing the BMW driving experience that enthusiasts crave.

City and highway performance

The 2018 328d excels in both city and highway environments, with an EPA rating of 31 MPG in the city and 43 MPG on the highway. This balanced performance reflects the 2.0L 4-cylinder diesel engine’s characteristics. The strong low-end torque makes city driving effortless, allowing for quick acceleration from a standstill without straining the engine. On the highway, the tall gearing of the 8-speed automatic transmission (S8) allows the engine to cruise at low RPMs, maximizing fuel efficiency and minimizing noise. It’s a powertrain that’s equally at home navigating urban congestion and eating up miles on a long road trip.

Annual Fuel Cost

According to EPA estimates, the annual fuel cost for the 2018 BMW 328d is $1,550. This figure is based on driving 15,000 miles per year and using national average fuel prices. It’s simple math, of course, but it gives potential buyers a clear benchmark to compare against other vehicles and to budget their transportation expenses. Individual fuel costs will vary based on driving habits and local fuel prices, but this $1,550 estimate provides a solid indication of the 328d’s running costs.

Real-World Expectations

EPA ratings provide a standardized benchmark, but real-world fuel economy can often differ. However, the 328d consistently delivers impressive fuel economy in real-world driving conditions, often exceeding the EPA estimates, particularly on long highway journeys. Drivers who prioritize smooth acceleration, anticipate traffic flow, and avoid excessive idling can easily achieve numbers in the high 40s on the highway. Even in mixed driving conditions, expect an average of around 38-40 MPG. Aggressive driving habits and frequent short trips will reduce fuel economy, but the 328d’s efficient engine and transmission ensure respectable MPG figures even under less-than-ideal circumstances.

How it compares

Compared to other vehicles in its class, the 2018 BMW 328d stands out for its exceptional fuel economy. The gasoline-powered BMW 330i from the same year achieves a combined rating of around 28 MPG. The Audi A4 2.0T, offers a comparable driving experience but typically achieves around 27 MPG combined. Even hybrid sedans like the Toyota Camry Hybrid, which aims for efficiency, only achieve around 52 MPG combined, a benefit, but not as sporty. For drivers who value a sporty driving experience and premium features alongside excellent fuel economy, the 328d offers a strong advantage. Explore all Bmw fuel economy data to fully understand how different models compare.

Tips to maximize efficiency

Maintain proper tire inflation. The correct tire pressure, specified on the driver’s side doorjamb, minimizes rolling resistance and improves fuel economy. Even a few PSI below the recommended level can noticeably reduce MPG, so check your tires regularly.

Anticipate traffic flow and drive smoothly. Avoid abrupt acceleration and braking, which waste fuel. By looking ahead and maintaining a consistent speed, you can significantly improve your fuel economy. The 328d’s smooth power delivers rewards a relaxed driving style.

Use cruise control on the highway. Maintaining a constant speed on long highway stretches reduces unnecessary throttle adjustments and maximizes fuel efficiency. Set the cruise control and let the 328d’s efficient powertrain do the work.

Minimize idling. Idling consumes fuel without covering any distance. If you’re stopped for more than a minute, turn off the engine. Modern engines are designed to restart quickly and efficiently, so you won’t damage the starter. Drivers looking at 328D MPG across all years will quickly notice how modern start/stop technology elevates fuel economy.

Keep up with scheduled maintenance. A well-maintained engine runs more efficiently. Follow the manufacturer’s recommended service intervals for oil changes, air filter replacements, and other maintenance tasks. A neglected engine can lose fuel economy over time.