36 MPG combined is impressive, especially for a BMW that still upholds the brand’s reputation for driving enjoyment. The 2017 BMW 328d isn’t about speed; it’s about a refined driving experience with a surprisingly fuel-efficient diesel engine. This isn’t a car for chasing lap times. It’s for those who value a composed ride, a well-appointed interior, and the ability to travel long distances without stopping for fuel.

City and highway performance

The 328d shows its efficiency in various driving conditions. The EPA estimates 31 MPG in the city. This reflects the engine’s ability to use its torque at low RPMs, reducing the need for aggressive acceleration. On the highway, the 328d truly shines, achieving a remarkable 43 MPG. This makes it an ideal choice for commuters and road-trippers who spend significant time at cruising speeds. The smooth-shifting 8-speed automatic transmission helps its efficiency on the open road, keeping the engine within its optimal operating range.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 BMW 328d at $1,550. This calculation is based on driving 15,000 miles per year and using national average fuel prices. This figure provides a standardized way to compare the 328d’s running costs against other vehicles. Remember that this is an estimate. Actual fuel costs will vary depending on individual driving habits and fuel prices. However, $1,550 is a good benchmark that highlights the 328d’s cost-effectiveness.

Real-world expectations

While EPA estimates provide a useful baseline, real-world fuel economy can vary depending on several factors. Aggressive driving, stop-and-go traffic, and extreme weather can all negatively impact MPG. However, most 328d owners report achieving figures close to the EPA estimates, especially on long highway journeys. With careful driving techniques, some hypermilers have even exceeded the official ratings. The key is to adopt a smooth and steady driving style, avoiding unnecessary acceleration and braking. Tire pressure and regular maintenance also maximize fuel efficiency. Check 328D MPG across all years to see user-submitted data.

How it compares

In the crowded world of compact luxury sedans, the 328d stands out for its diesel-powered efficiency. Consider the Lexus IS 300. With a gasoline engine, it achieves around 24 MPG combined, far short of the 328d’s 36 MPG. The Mercedes-Benz C300, another popular choice, typically gets around 28 MPG combined. While hybrid options exist, such as the Lexus ES 300h at around 44 MPG combined, they come with a different driving feel and ownership considerations. The Audi A4 offers a similar level of refinement but generally achieves around 27 MPG combined, making the 328d a clear winner for fuel-conscious buyers. These differences matter to the buyer looking for a true, efficient luxury car. You can also compare all Bmw fuel economy data on our site.

Tips to maximize efficiency

Use the 328d’s Eco Pro mode. This setting adjusts the engine mapping, throttle response, and transmission behavior to focus on fuel efficiency. It also reduces the power consumption of auxiliary systems like the air conditioning. Switching to Eco Pro mode is a simple way to get more miles from each gallon of fuel.

Maintain a consistent speed on the highway. Using cruise control can help prevent unintended acceleration and deceleration, which can negatively impact fuel economy. Anticipate traffic flow and avoid harsh braking, allowing the engine to coast whenever possible. These techniques are effective at highway speeds.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, making the engine work harder and consume more fuel. Check your tire pressure regularly and inflate them to the recommended level specified on the doorjamb sticker. This small adjustment can have a noticeable impact on fuel efficiency.

Avoid carrying unnecessary weight in the vehicle. Extra cargo adds strain to the engine, reducing fuel economy. Remove any items from the trunk or backseat that are not essential for your journey. A lighter car requires less energy to accelerate and maintain speed.