2018 Acura RLX
Fuel economy, running costs, emissions and safety · from U.S. EPA and NHTSA data
The 2018 Acura RLX is sold in the U.S. with gasoline and hybrid power. The EPA lists 2 configurations for this model year, with combined economy from 23 to 28 MPG and an estimated annual fuel cost of $2,850 to $3,450 at 15,000 miles.
Key numbers
| Model year | 2018 |
|---|---|
| Vehicle class | Midsize Cars |
| Fuel type(s) | Gasoline, Hybrid |
| Combined economy | 23-28 MPG |
| Best / worst combined | 28 / 23 MPG |
| Annual fuel cost | $2,850-$3,450 |
| Tailpipe CO₂ | 316-383 g/mi |
| EPA smog rating | 3-7 / 10 |
| NHTSA overall | 5 / 5 stars |
What it costs to fuel
Across its configurations, the 2018 RLX costs about $2,850 to $3,450 a year to fuel at the EPA's 15,000-mile basis, averaging roughly $3,150. Over five years that is about $15,750 in fuel alone before maintenance, insurance and depreciation — which is why the running cost, not just the price, decides what a car really costs.
Relative to an average new vehicle, this RLX configuration spends about $2,750 more on fuel over five years.
For context, the average combined economy of midsize cars in this dataset is about 32 MPG. The RLX sits roughly 7 MPG below that mark at its midpoint, making it thirstier than average for its EPA class.
Configurations and fuel economy
| Version | Engine | Drive | Trans | Fuel | Combined | Annual fuel |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | All-Wheel | Automatic | Hybrid | 28 MPG | $2,850 |
| RLX | 3.5L 6-cyl | Front-Wheel | Automatic | Gasoline | 23 MPG | $3,450 |
Emissions, safety and size
The 2018 RLX records tailpipe CO₂ of 316-383 g/mi, an EPA smog rating of 3-7 out of 10, a 5-star NHTSA overall crash rating. The EPA classifies it as midsize cars.
Compare this car
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Data: U.S. EPA FuelEconomy.gov (public domain) and NHTSA SafetyRatings. Figures are EPA estimates; real-world results vary.