2025 Lexus UX 300h (variant 2) MPG & Specs
Quick answer
The 2025 Lexus UX 300h gets an EPA-estimated 45/41 MPG (city/highway) and 43 MPG combined, with an estimated $1,450/year fuel cost and 204 g/mi CO₂. Engine: 2 L 4-cyl.
The 2025 Lexus UX 300h with the 2-liter 4-cylinder regular gasoline engine returns an EPA-estimated 45 MPG in the city and 41 MPG on the highway, for a combined 43 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 2 L 4-cyl |
| Transmission | Automatic (variable gear ratios) |
| Drive | Front-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Compact Cars |
| MPG — city | 45 |
| MPG — highway | 41 |
| MPG — combined | 43 |
| Annual fuel cost* | $1,450 |
| CO₂ tailpipe | 204 g/mi |
| EPA GHG score | 7/10 |
How efficient is it?
With a combined 43 MPG, the 2025 Lexus UX 300h sits in the very good range for fuel economy. That is about 69% better than the typical Compact Cars of its era (25 MPG class average), making it one of the more efficient choices in its class.
Fuel economy and running costs
At about $1,450 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2025 Lexus UX 300h. Over five years that is roughly $7,250 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2025 Lexus UX 300h emits approximately 204 grams of CO₂ per mile at the tailpipe, earning an EPA greenhouse-gas score of 7 out of 10. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.