35 MPG combined might surprise some people, especially in a BMW 3 Series. But the 2016 BMW 328d is different; it’s a diesel model designed for fuel efficiency without completely losing the sporty feel that BMW is known for. This car isn’t made for pure speed, but for comfortable and efficient long drives, which it does very well.

City and highway performance

The EPA estimates the 328d gets 31 MPG in the city and an impressive 42 MPG on the highway. The highway number is especially good, putting it among the most fuel-efficient non-hybrid cars of its time. The 2.0L 4-cylinder turbodiesel engine has enough power for merging and passing, but its strength is in its torque. The strong low-end torque allows for relaxed highway cruising, rarely requiring downshifts, which helps its fuel economy. City driving, while not as good as the highway number, is still good for a car of this size and type, beating many gas-powered competitors.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2016 BMW 328d at $1,600. This is based on driving 15,000 miles a year and using national average fuel prices. Your actual fuel costs will change depending on how you drive and local fuel prices. However, this gives you a benchmark to compare against other cars. The savings can add up over time, especially if you drive a lot. See the 328d MPG across all years.

Real-world expectations

EPA estimates are a standard, but real-world fuel economy can vary. Factors like driving style, traffic, and maintenance affect the MPG you get. However, the 328d’s fuel economy is fairly consistent. Most owners report numbers close to the EPA estimates, especially on longer highway trips. Hard acceleration and frequent stop-and-go traffic will reduce fuel economy, but even then, you can expect better MPG than a similar gas-powered 3 Series. Many owners like that they can regularly get over 40 MPG on the highway.

How it compares

In 2016, the Mercedes-Benz C300, a popular competitor, had a combined EPA rating of about 28 MPG with its turbocharged gasoline engine. The Audi A4, another competitor, got a similar number in its base form. Even the Lexus IS 200t, known for its smooth powertrain, only got about 25 MPG combined. The 328d’s better fuel economy means real savings at the pump, making it a good choice if you want efficiency without losing luxury or good handling. Hybrid competitors like the Lexus CT 200h, while great in the city (43 MPG), couldn’t match the 328d’s highway efficiency (40 MPG), and didn’t always have the same engaging driving experience.

Tips to Maximize Efficiency

Use the 328d’s Eco Pro mode. This setting changes the engine and throttle to prioritize fuel efficiency. It won’t turn the 328d into a Prius, but it can improve your MPG, especially in city driving or on the highway.

Check your tire pressure often. Properly inflated tires reduce rolling resistance, which improves fuel economy. Check the sticker on the driver’s side door for the recommended tire pressure. A simple tire pressure check is a quick way to improve your car’s fuel efficiency.

Avoid idling. Diesel engines can use a surprising amount of fuel when idling. If you’re stopped for more than a minute or two, it’s better to turn off the engine. The 328d starts up quickly, so it’s not a problem to do so.

Schedule regular maintenance, including oil changes and filter replacements. A well-maintained engine runs more efficiently. Follow the manufacturer’s maintenance schedule for the best performance and fuel economy. See all Bmw fuel economy data.

Use cruise control on the highway. Maintaining a consistent speed reduces unnecessary acceleration and deceleration, improving fuel efficiency. The 328d’s cruise control is easy to use and helps you maintain a steady pace, especially on long drives.