Cost Guide · gas
2018 Lexus RX 350 — Real Cost to Drive & Own
Driven 15,000 miles a year with a 55/45 city/highway split, the 2018 Lexus RX 350 costs about $2,215.98/year in fuel and roughly $13,830 over five years including maintenance, tires, insurance and estimated depreciation. Use the calculator below with your own mileage, prices and ZIP for a personalized figure.
Cost breakdown for the 2018 Lexus RX 350
DriveCost's estimates are built from transparent, documented assumptions. The headline numbers above are composed of:
- Energy ($2,215.98/year): based on the EPA combined rating of 23 MPG and a $3.42/gal national average gas price.
- Maintenance & tires: age-band estimates by fuel type — EVs and hybrids cost less to maintain than gas cars.
- Depreciation: a documented residual-value model (about 20% in year one, then ~10%/year).
Adjust the inputs above — especially annual miles and your local fuel/electricity prices — because they change the answer more than any other factor.
Trims & fuel economy
| Trim | Fuel | City | Highway | Combined |
|---|---|---|---|---|
| RX 350 | Regular | 20 | 27 | 23 |
MPG and efficiency are EPA-rated estimates. Actual mileage varies with conditions, driving style and vehicle condition. See the methodology.
Similar vehicles to compare
FAQs for this vehicle class
DriveCost multiplies your estimated annual gallons by the gasoline price you enter (or the national average). Estimated gallons = annual miles ÷ weighted MPG, where weighted MPG blends the EPA city and highway ratings using your city/highway driving split.
EPA ratings come from standardized lab tests at fueleconomy.gov. They are useful for comparing vehicles, but real-world economy varies with weather, traffic, speed, terrain, vehicle condition and driving style. DriveCost labels them "EPA-rated" and treats them as estimates.
Cost per mile = total annual operating costs ÷ annual miles. Operating costs include fuel or electricity, maintenance, tires and other recurring costs you enter. It excludes the one-time purchase price and depreciation.
Five-year energy cost is the annual energy cost multiplied by your ownership period. The full five-year ownership view also adds estimated maintenance, tires, depreciation and optional insurance/registration, using documented assumptions that are shown on the methodology page.