Lexus RX 450h AWD
30 MPG The 2022 Lexus RX 450h AWD is EPA-rated at 30 MPG combined (31 city / 28 highway). Over 15,000 miles a year that is about 500 gallons, $1600 a year in fuel, or $0.107 per mile at $3.20/gal.
Across its full 2010–2022 run it averages 29.2 MPG, improving by 1 MPG over 13 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.083 | $833 | $1250 | $1667 |
| $3.00/gal | $0.100 | $1000 | $1500 | $2000 |
| $3.20/gal | $0.107 | $1067 | $1600 | $2133 |
| $3.50/gal | $0.117 | $1167 | $1750 | $2333 |
| $4.00/gal | $0.133 | $1333 | $2000 | $2667 |
| $4.50/gal | $0.150 | $1500 | $2250 | $3000 |
| $5.00/gal | $0.167 | $1667 | $2500 | $3333 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2022 | 30 MPG | 31 | 28 | $2550 | 297 | 1 |
| 2021 | 30 MPG | 31 | 28 | $2550 | 297 | 1 |
| 2020 | 30 MPG | 31 | 28 | $2550 | 297 | 1 |
| 2019 | 30 MPG | 31 | 28 | $2550 | 297 | 1 |
| 2018 | 30 MPG | 31 | 28 | $2550 | 297 | 1 |
| 2017 | 30 MPG | 31 | 28 | $2550 | 297 | 1 |
| 2016 | 30 MPG | 30 | 28 | $2550 | 299 | 1 |
| 2015 | 28 MPG | 29 | 27 | $2750 | 312 | 1 |
| 2014 | 28 MPG | 29 | 27 | $2750 | 312 | 1 |
| 2013 | 28 MPG | 29 | 27 | $2750 | 312 | 1 |
| 2012 | 28 MPG | 29 | 27 | $2750 | 317 | 1 |
| 2011 | 28 MPG | 29 | 27 | $2750 | 317 | 1 |
| 2010 | 29 MPG | 30 | 28 | $2650 | 306 | 1 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 105 standard sport utility vehicle 4wd models tracked here, the Lexus RX 450h AWD ranks 4 on current figures, against a class average of 19.6 MPG.
Closest more-efficient alternatives in the same class: Toyota Highlander Hybrid AWD (35), Toyota Highlander Hybrid AWD LTD/PLAT (35), Tesla Model X (105).
Tailpipe CO₂ is rated at 297 grams per mile, which works out to roughly 4.5 tonnes a year at 15,000 miles.
Questions
What MPG does the Lexus RX 450h AWD get?
The 2022 Lexus RX 450h AWD is rated at 30 MPG combined by the EPA — 31 city and 28 highway. Across all 13 model years in the database it averages 29.2 MPG, ranging from 28 to 30 depending on year and trim.
How much does a Lexus RX 450h AWD cost in fuel per year?
At 30 MPG and 15,000 miles a year, it burns about 500 gallons — roughly $1600 a year with fuel at $3.20 a gallon, or $0.107 per mile. The EPA's own published annual figure for the 2022 model is $2550.
Has the Lexus RX 450h AWD become more efficient over time?
Yes. It has gone from 29 MPG in 2010 to 30 in 2022 — an improvement of 1 MPG, or 3% across 13 model years.
Is the Lexus RX 450h AWD efficient for its class?
It ranks 4 of 105 in the Standard Sport Utility Vehicle 4WD class on current figures, against a class average of 19.6 MPG. That is 10.4 better than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.