28 MPG combined is a reasonable figure for the 2022 BMW Z4 sDrive30i, and its owners typically find this acceptable. This isn’t a vehicle purchased for pure fuel efficiency; it’s a stylish two-seat roadster designed for open-air enjoyment and spirited driving. The four-cylinder Z4 prioritizes fun and responsive handling over saving gas, and its fuel economy reflects that balance. Z4 buyers are typically less concerned with saving every possible dollar at the pump, and more focused on the emotional rewards it delivers behind the wheel.

City and highway performance

The EPA estimates the Z4 sDrive30i will achieve 25 MPG in the city and 32 MPG on the highway. The city figure is respectable for a performance-oriented car, reflecting the engine’s decent low-end torque and the smooth operation of the eight-speed automatic. The highway number is even more impressive, suggesting that the Z4 is a comfortable and efficient cruiser on longer trips, maximizing fuel economy when it matters most. Credit goes to the well-chosen gear ratios and the engine’s ability to settle into a relaxed rhythm at higher speeds.

Annual fuel cost

The EPA calculates that the annual fuel cost for the 2022 BMW Z4 sDrive30i will be $2,050. This figure is based on driving 15,000 miles per year and using the national average fuel price at the time of calculation. While this is a useful estimate, your actual fuel costs will vary depending on your driving habits, the type of fuel you use, and local fuel prices. However, $2,050 provides a benchmark for understanding the Z4’s running costs in relation to other vehicles and gives you a solid starting point for your own personal calculations.

Real-world expectations

While the EPA estimates offer a standardized comparison, real-world fuel economy will inevitably vary. Aggressive driving, frequent acceleration, and prolonged idling will all decrease fuel efficiency. Smooth acceleration, consistent speeds, and careful anticipation of traffic conditions can help you achieve or even exceed the EPA estimates. The Z4’s smaller size and relatively light weight can also contribute to better fuel economy, especially in stop-and-go traffic where larger vehicles struggle.

How it compares

Compared to its rivals, the BMW Z4 sDrive30i is competitively positioned. The Porsche 718 Boxster, another open-top performance icon, achieves a slightly lower 24 MPG combined with its base engine. The Mazda MX-5 Miata, while far less powerful, boasts a higher 30 MPG combined, but caters to a different buyer prioritizing lightweight agility over outright power and luxury. The Z4 MPG across all years holds up strongly. Ultimately, the Z4 strikes a balance between performance and efficiency that appeals to drivers who want a fun-to-drive roadster without completely sacrificing fuel economy. Looking at all Bmw fuel economy data shows that the Z4 is similar to other models in the brand’s lineup, considering its performance profile.

Tips to maximize efficiency

Avoid aggressive acceleration and braking. The Z4’s turbocharged engine is responsive, but pressing hard on the accelerator will quickly drain the fuel tank. Gentle acceleration and progressive braking not only improve fuel economy, but also make for a more enjoyable driving experience.

Maintain proper tire pressure. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Check your tire pressure regularly and inflate them to the recommended levels, found on a sticker inside the driver’s side doorjamb. Proper tire pressure optimizes fuel rolling resistance, increasing fuel economy.

Minimize idling. Letting the engine idle for extended periods wastes fuel. If you’re stopped for more than a minute, turn off the engine. The Z4’s engine restarts quickly, and the fuel savings can add up over time.

Use cruise control on the highway. Engaging cruise control helps maintain a consistent speed, reducing unnecessary acceleration and deceleration, which can improve fuel economy on long trips. Remember to disengage cruise control when approaching hills or changing traffic conditions.

Consider using a higher octane fuel. While the Z4 sDrive30i doesn’t strictly require premium fuel, some drivers have reported slightly improved performance and fuel economy when using higher-octane gasoline. Experiment to see if it makes a noticeable difference in your driving style and conditions.