42 MPG combined is the headline for the 2024 Lexus UX 250h, and it’s the main reason this compact hybrid crossover exists. It appeals to buyers who prioritize fuel efficiency and Lexus refinement over performance or maximum cargo space. These are often urban dwellers, empty-nesters, or individuals for whom style and a premium badge matter more than practicality, and they’re willing to accept the UX’s limitations in exchange for exceptional mileage and the luxury of a Lexus.

City and highway performance

The EPA numbers are a bit unusual, with the UX 250h achieving 43 MPG in the city and 41 MPG on the highway. This slight inversion is due to the hybrid powertrain’s regenerative braking system, which captures energy during deceleration and recharges the battery. In stop-and-go city driving, this system is constantly engaged, boosting efficiency.

On the open highway, the gasoline engine does more of the work, resulting in a slightly lower, though still impressive, MPG figure. The 2.0L 4-cylinder engine works with the electric motor to deliver adequate, but not exhilarating performance. It’s tuned for efficiency, not speed, which aligns with the UX buyer’s priorities.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2024 Lexus UX 250h at $1,050. This figure is based on driving 15,000 miles per year and using national average fuel prices. Keep in mind that this is just an estimate, and your actual fuel costs may vary depending on your driving habits, location, and current gasoline prices.

However, it provides a benchmark for comparing the UX 250h’s running costs against other vehicles and highlights its appeal to budget-conscious buyers who still desire a touch of luxury.

Real-world expectations

While the EPA’s numbers are a good starting point, real-world fuel economy often differs. With the UX 250h, expect to see figures that are close to the official numbers, especially if you drive primarily in urban environments. The hybrid system is well-calibrated, and the car encourages efficient driving habits. Aggressive acceleration and high-speed cruising will reduce fuel economy, but even in less-than-ideal conditions, achieving MPG in the high 30s should be attainable.

Owners often report exceeding the EPA combined figure in mixed driving scenarios.

How it compares

The UX 250h exists in a segment with few direct competitors offering comparable fuel economy and luxury. The Kia Niro, for instance, achieves 53 MPG combined, making it a more efficient option, but it lacks the Lexus’ premium feel and refinement. Within the Lexus family, the ES 300h sedan, with its 44 MPG combined, offers similar fuel efficiency in a larger, more traditional sedan format. The Toyota Corolla Cross Hybrid, while more affordable, doesn’t deliver the same level of luxury or cachet. For those considering a plug-in hybrid, the Prius Prime boasts a much higher MPG equivalent when using its electric range, though it caters to a slightly different buyer seeking maximum eco-friendliness over luxury. Checking all Lexus fuel economy data can help cross-shoppers identify other Lexus models to consider. For a narrower view, you can view UX MPG across all years.

Tips to maximize efficiency

Take advantage of the UX 250h’s Eco mode. This setting adjusts the throttle response and climate control to prioritize fuel efficiency. While it might slightly reduce performance, it can significantly improve your MPG, especially in city driving, without making the vehicle feel drastically underpowered.

Monitor the hybrid system indicator on the dashboard. This display provides real-time feedback on your driving habits and the performance of the hybrid system. Use it to learn how to optimize your acceleration and braking for maximum efficiency, aiming to keep the car in electric-only mode as much as possible at lower speeds.

Practice smooth and gradual acceleration. Avoid aggressive starts and sudden braking, as these actions waste energy. Instead, accelerate gently and anticipate traffic flow to maintain a constant speed whenever possible. The UX 250h’s powertrain is designed to work best with a smooth and deliberate driving style.

Ensure your tires are properly inflated. Underinflated tires increase rolling resistance, which reduces fuel economy. Check your tire pressure regularly and maintain the recommended pressure as specified on the driver’s side doorjamb. This simple step can make a noticeable difference in your MPG.

Minimize aerodynamic drag. Remove any unnecessary cargo from the roof rack or trunk, as this can increase wind resistance and reduce fuel efficiency. Even small changes can add up over time, helping you achieve the best possible MPG from your UX 250h.