The 2024 BMW 330i gets 29 MPG combined, according to the EPA. While this isn’t the best fuel economy you can find, it balances performance, luxury, and efficiency for a specific type of driver. This car isn’t for someone obsessed with squeezing every last mile out of a gallon. The 330i buyer wants a responsive, engaging sedan that still gets respectable fuel economy daily. They’re willing to trade some fuel savings for driving experience and the BMW brand.

City and highway performance

The 330i’s city and highway MPG reflects how useful it is in real-world driving. Its 25 MPG city rating shows that stop-and-go driving impacts efficiency, as one would expect. This isn’t a hybrid made for cities. However, the 34 MPG highway figure is where the 330i excels, especially for commuters or those who take long road trips. The smooth-shifting eight-speed automatic transmission (S8) lets the 2.0L turbocharged four-cylinder settle into a relaxed rhythm, maximizing fuel economy without losing its ability to quickly pass or accelerate when needed. The engine delivers plenty of torque, so it never feels strained, even at higher speeds, which also helps its highway efficiency. For drivers who spend a lot of time on interstates, the 330i is a relatively efficient and enjoyable car.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 BMW 330i at $2,000. This is based on driving 15,000 miles per year, a mix of city and highway driving, and national average fuel prices. It’s a good way to compare the 330i’s running costs to other cars in its class. Individual fuel costs will change based on driving habits and local fuel prices, but the EPA’s number gives a standard way to see the financial impact of owning this model. Of course, drivers who drive more or less than 15,000 miles per year will see different fuel expenses.

Real-world expectations

EPA numbers are a good starting point, but real-world fuel economy changes based on how and where you drive. A driver who often uses the 330i’s Sport mode and accelerates quickly will likely see MPG numbers below the EPA numbers. On the other hand, a driver who mostly uses the car for longer commutes, keeps a consistent speed, and drives gently may get better than the EPA’s ratings. Tire pressure, temperature, and even using accessories like air conditioning can also impact actual MPG. Drivers who watch their fuel consumption and change how they drive can often improve their real-world fuel efficiency.

How it compares

When looking at the 330i’s fuel economy, look at its competitors. The Acura TLX, for example, gets a combined 25 MPG with its base engine. The Mercedes-Benz C300, another key competitor, gets a similar combined MPG around 28. Audi’s A4, with its 40 TFSI engine, gets comparable fuel economy, around 28 MPG combined. These comparisons are important because 330i buyers often compare these cars. They’re weighing more than just MPG, they also want good performance, handling, interior quality, and brand image. The 330i’s slightly better fuel economy than some competitors could be important to some, especially with its reputation for driving dynamics and handling. You can explore 330I MPG across all years to see how the 330i’s efficiency has evolved. And if you’re looking more broadly, review all Bmw fuel economy data.

Tips to maximize efficiency

The 330i’s driving modes can help. Comfort mode is a good balance of performance and efficiency for everyday driving. Eco Pro mode changes the throttle and transmission to save fuel, especially during long commutes. This mode works best when you keep a steady speed.

Make sure your tires are inflated correctly. Underinflated tires increase rolling resistance, which hurts fuel economy. Check your tire pressure often and inflate them to the pressure on the driver’s side doorjamb. Even a little change in tire pressure can change your MPG.

Watch traffic and avoid hard acceleration and braking. The 330i’s engine can be tempting to drive aggressively, but smooth driving improves fuel efficiency. Look ahead, watch changes in traffic, and keep a consistent speed when you can.

Reduce weight. Extra weight in your car reduces fuel economy. Remove unnecessary items from your trunk and back seats, even a little extra weight adds up. This is especially true for frequent trips. The more you haul, the more fuel you use.