BMW X3 2018 Gas Performance & Fuel Efficiency Guide

The 2018 BMW X3 remains a benchmark in the luxury SUV segment, especially for those prioritizing refined performance and fuel efficiency in a gas-powered model. Built around the turbocharged inline-six (B58) and optional inline-four (B48), this X3 delivers responsive power delivery with smooth engagement and low-end torque that enhances city and highway driving.

Fuel economy varies by trim and engine: the base 228-horsepower B48 naturally aspirated four-cylinder achieves an estimated 25 mpg in the city and 34 on the highway, making it efficient for daily commuters. The B58 six-cylinder variant, though slightly heavier, balances performance with proportional efficiency, delivering up to 21 mpg city and 33 highway—ideal for drivers seeking dynamic capability without excessive fuel consumption.

Beyond numbers, the 2018 X3 excels in driving dynamics—its adaptive suspension, precise steering, and refined interior create a premium experience. With modern tech like the iDrive 6 system and intuitive connectivity, it merges tradition with innovation, ensuring comfort and control in every journey.

Whether navigating urban grids or cruising open roads, the 2018 BMW X3’s gas engines deliver reliable performance, efficient fuel use, and lasting appeal. For enthusiasts and daily drivers alike, it stands out as a versatile, well-balanced SUV in a competitive market.

The 2018 BMW X3 in gas form continues to impress with balanced performance, efficient fuel economy, and a driving experience that sets it apart. Whether you prioritize city agility or highway comfort, its engines deliver reliable power without compromise. Ready to experience the blend of efficiency and excellence? Test drive a 2018 BMW X3 today and discover why it remains a standout in the luxury SUV market.

My X3 2018 BMW X3 xDrive30i 2.0L L4 GAS Automatic 8 Speed Added Aug 2019 242 Fuel. Search by Model. Search by make for fuel efficient new and used cars and trucks.

View detailed gas mileage data for the 2018 BMW X3. Use our handy tool to get estimated annual fuel costs based on your driving habits. A luxury crossover for the driving enthusiast, the 2018 BMW X3 delivers excellent handling and zippy performance from the choice of two strong engines.

BMW recommends premium unleaded gasoline with 91+ octane for the X3 SUV. Learn why this matters, effects of regular gas, plus tips for X3 gas and performance. Compare all 2018 BMW X3 trims in one place.

Get KBB fair purchase pricing, fuel economy, tech, and safety features side. 💵 What is the Average Yearly Fuel Cost for a 2018 BMW X3 xDrive30i? The estimated fuel costs for the 2018 BMW X3 xDrive30i is $2,950 per year. That value has been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

Get the most useful specifications data and other technical specs for the 2018 BMW X3 M40i Sports Activity Vehicle. See body style, engine info and more specs. See detailed specs, features, packages and dimensions by trim level for the 2018 BMW X3.

Detailed specs and features for the Used 2018 BMW X3 including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders, drivetrain and more.

Load Site Average 0,422 sec