2025 head-to-head · Small SUV
2025 Infiniti QX50 vs Lexus RX
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2025 Infiniti QX50 is the cheaper one to run. Driving 15,000 miles a year with $3.95/gal premium gas, it costs about $2,279 a year to fuel (26 MPG), versus $2,370 for the 2025 Lexus RX (25 MPG). That's roughly $91 a year, or about $456 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Infiniti QX50
- Lexus RX
Side by side
| Infiniti QX50 | Lexus RX | |
|---|---|---|
| $2,279 | Your annual fuel cost | $2,370 |
| 26 MPG | Combined efficiency | 25 MPG |
| 23 MPG | City | 22 MPG |
| 29 MPG | Highway | 29 MPG |
| 343 g/mi | Tailpipe CO₂ (g/mi) | 354 g/mi |
| 5/10 | EPA fuel economy score | 5/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Premium gasoline | Fuel | Premium gasoline |
| 2.0L 4-cyl turbo | Engine / motor | 2.4L 4-cyl turbo |
| CVT | Transmission | 8-speed automatic |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Infiniti QX50 vs Lexus RX across model years
- Infiniti QX50
- Lexus RX
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 133 2025 small SUVs, the Infiniti QX50 ranks 111th and the Lexus RX 115th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2025 Infiniti QX50 or the 2025 Lexus RX?
Measured by cost to drive, the Infiniti QX50. The Infiniti QX50 is rated 26 MPG combined and the Lexus RX 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2025 Infiniti QX50 vs. the Lexus RX per year?
At 15,000 miles a year with $3.95/gal premium gas, about $2,279 for the Infiniti QX50 and $2,370 for the Lexus RX.
Infiniti QX50 vs Lexus RX in other years
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