2018 head-to-head · Small SUV
2018 Cadillac XT5 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 2018 Lexus RX is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $2,022 a year to fuel (23 MPG), versus $2,114 for the 2018 Cadillac XT5 (22 MPG). That's roughly $92 a year, or about $459 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
- Cadillac XT5
- Lexus RX
Side by side
| Cadillac XT5 | Lexus RX | |
|---|---|---|
| $2,114 | Your annual fuel cost | $2,022 |
| 22 MPG | Combined efficiency | 23 MPG |
| 19 MPG | City | 20 MPG |
| 26 MPG | Highway | 27 MPG |
| 405 g/mi | Tailpipe CO₂ (g/mi) | 391 g/mi |
| 4/10 | EPA fuel economy score | 5/10 |
| 4/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 3.6L 6-cyl | Engine / motor | 3.5L 6-cyl |
| 8-speed automatic | 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.
Cadillac XT5 vs Lexus RX across model years
- Cadillac XT5
- 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 68 2018 small SUVs, the Cadillac XT5 ranks 47th and the Lexus RX 42nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Cadillac XT5 or the 2018 Lexus RX?
Measured by cost to drive, the Lexus RX. The Cadillac XT5 is rated 22 MPG combined and the Lexus RX 23 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Cadillac XT5 vs. the Lexus RX per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,114 for the Cadillac XT5 and $2,022 for the Lexus RX.
Cadillac XT5 vs Lexus RX in other years
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