- Newest year: 2020
- Gas
- Hybrid
- Midsize cars
- Same as 2019
2014-2020 Acura RLX MPG & Fuel Cost
7 model years · 23–30 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 2 of 10 midsize car configurations, MY2020. Ranked against all rated configurations, not sales-weighted.
2014-2020 Acura RLX at a glance
The 2014-2020 Acura RLX covers 7 model years in the EPA database (13 configurations in all), rated 23–30 MPG combined. The newest model year, 2020, costs about $2,870 a year to fuel for its most efficient version, the Hybrid 3.5L 6-cyl AWD (28 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). Powertrains over the years: gas and hybrid. EPA changed the ratings in 2015, 2016, 2017 and 2018; 2019 and 2020 repeat the values of the year before. The best combined rating in the generation, 30 MPG, was reached in 2014 and 2016.
2014-2020 Acura RLX by model year
| Model year | Powertrains | Combined | $/yr | EPA ratings |
|---|---|---|---|---|
| 2020 | Gas, Hybrid | 23–28 MPG | $2,870–$3,460 | Same EPA ratings as 2019 |
| 2019 | Gas, Hybrid | 23–28 MPG | $2,870–$3,460 | Same EPA ratings as 2018 |
| 2018 | Gas, Hybrid | 23–28 MPG | $2,870–$3,460 | Ratings changed |
| 2017 | Gas, Hybrid | 23–29 MPG | $2,770–$3,430 | Ratings changed |
| 2016 | Gas, Hybrid | 23–30 MPG | $2,720–$3,430 | Ratings changed |
| 2015 | Gas | 23 MPG | $3,430 | Ratings changed |
| 2014 | Gas, Hybrid | 23–30 MPG | $2,720–$3,430 | First year |
What the 2020 RLX 3.5L 6-cyl FWD costs to drive
Per month
$288
$3,460 a year ÷ 12
Per 25 miles
$5.77
Per 100 miles
$23.07
Five years
$17,300
5 × the yearly cost, prices held at today's level
vs the midsize car median
$640more a year
Class median $2,820 a year, MY2020
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2020 Acura RLX MPG
EPA lists the same ratings for the 2020 Acura RLX as for the 2019 model, so the configurations and costs are the ones in the 2019 section above.See 2019
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| RLX (Most efficient) | 3.5L 6-cyl | FWD | 20 | 29 | 23 | $3,460 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Hybrid configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Hybrid (Most efficient) | 3.5L 6-cyl | AWD | 28 | 29 | 28 | $2,870 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2019 Acura RLX MPG
Same EPA ratings as 2018
EPA lists the same ratings for the 2019 Acura RLX as for the 2018 model, so the configurations and costs are the ones in the 2018 section above.See 2018
2018 Acura RLX MPG
23–28 MPG · $2,870–$3,460/yr
Versus 2017: The most efficient configuration moves from 29 to 28 MPG, down 1. Its annual cost goes from $2,770 to $2,870, $100 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| RLX (Most efficient) | 3.5L 6-cyl | FWD | 20 | 29 | 23 | $3,460 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Hybrid configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Hybrid (Most efficient) | 3.5L 6-cyl | AWD | 28 | 29 | 28 | $2,870 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2017 Acura RLX MPG
23–29 MPG · $2,770–$3,430/yr
Versus 2016: The most efficient configuration moves from 30 to 29 MPG, down 1. Its annual cost goes from $2,720 to $2,770, $50 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| RLX (Most efficient) | 3.5L 6-cyl | FWD | 20 | 30 | 23 | $3,430 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Hybrid configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Hybrid (Most efficient) | 3.5L 6-cyl | AWD | 29 | 30 | 29 | $2,770 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2016 Acura RLX MPG
23–30 MPG · $2,720–$3,430/yr
Versus 2015: The most efficient configuration moves from 23 to 30 MPG, up 7. Its annual cost goes from $3,430 to $2,720, $710 less.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| RLX (Most efficient) | 3.5L 6-cyl | FWD | 20 | 30 | 23 | $3,430 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Hybrid configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Hybrid (Most efficient) | 3.5L 6-cyl | AWD | 28 | 31 | 30 | $2,720 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2015 Acura RLX MPG
23 MPG · $3,430/yr
Versus 2014: The most efficient configuration moves from 30 to 23 MPG, down 7. Its annual cost goes from $2,720 to $3,430, $710 more.
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| RLX (Most efficient) | 3.5L 6-cyl | FWD | 20 | 30 | 23 | $3,430 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2014 Acura RLX MPG
23–30 MPG · $2,720–$3,430/yr
Gas configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| RLX (Most efficient) | 3.5L 6-cyl | FWD | 20 | 30 | 23 | $3,430 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Hybrid configurations (1)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| Hybrid (Most efficient) | 3.5L 6-cyl | AWD | 28 | 31 | 30 | $2,720 |
1 configuration requires or recommends higher-octane gasoline and is costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the RLX 3.5L 6-cyl FWD: $4,130 in California and $3,000 in Texas, a $1,130 difference.
- California $4,130
- Washington $3,880
- New York $3,420
- Florida $3,160
- Texas $3,000
Similar cars
Closest combined MPG among MY2020 midsize car models.
Generations
- 2014-2020 (2014)
Frequently asked questions
What gas mileage does the 2014-2020 Acura RLX get?
EPA rates the 2014-2020 Acura RLX at 23–30 MPG combined across 13 configurations and 7 model years. The most efficient version, the 2016 Hybrid 3.5L 6-cyl AWD, is rated 30 MPG (28 city, 31 highway). By powertrain: Gas: 23 MPG; Hybrid: 28–30 MPG.
Which years had the best MPG in the 2014-2020 Acura RLX?
The Hybrid 3.5L 6-cyl AWD reached the generation's best combined rating, 30 MPG, in 2014 and 2016. The lowest top rating, 23 MPG, was in 2015.
Did EPA ratings change during the 2014-2020 Acura RLX?
Yes. Ratings changed in 2015, 2016, 2017 and 2018. In 2019 and 2020 the values repeat the year before.
How much does it cost to fuel a 2020 Acura RLX per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the RLX 3.5L 6-cyl FWD costs about $3,460 a year. Across all 2 configurations the cost runs $2,870–$3,460 a year. That is a $590 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2020 Acura RLX 100 miles?
About $23.07 per 100 miles for the RLX 3.5L 6-cyl FWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $19.13 and $23.07 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2020 Acura RLX more efficient in the city or on the highway?
The RLX 3.5L 6-cyl FWD is rated 20 city and 29 highway MPG, so it is more efficient on the highway, by 9 MPG.
How does the 2020 Acura RLX compare with other midsize car configurations?
The RLX 3.5L 6-cyl FWD costs about $3,460 a year to fuel, $640 more than the class median of $2,820, and less than 2 of 10 midsize car configurations. The comparison covers all 159 rated midsize car configurations for MY2020, not weighted by sales.
Is the 2020 Acura RLX hybrid cheaper to fuel than the gas version?
Yes. The best hybrid (Hybrid 3.5L 6-cyl AWD) is rated 28 MPG against 23 MPG for the best gas version (RLX 3.5L 6-cyl FWD), 5 MPG more. At premium gasoline $5.36/gal (U.S. average, Sep 2026) that is $2,870 versus $3,460 a year, a saving of $590.
Is the 2020 Acura RLX different from the 2019 model?
No. EPA lists the same ratings for 2019 and 2020: 2 configurations rated 23–28 MPG combined. See the 2019 Acura RLX for that year.