Acura RLX MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Acura RLX model year from 2005 to 2020 — each engine and transmission with its official city, highway and combined figures. Over these years the RLX has been offered with 3.5L 6-cyl, 3.7L 6-cyl engines; the most efficient version is the 2016 (up to 30 MPG combined). Every rated gas version calls for premium gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
Acura RLX fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2020 | 23–28 MPG | 3.5L 6-cyl | $30,290 | 6 listings |
| 2019 | 23–28 MPG | 3.5L 6-cyl | — | — |
| 2018 | 23–28 MPG | 3.5L 6-cyl | $20,995 | 15 listings |
| 2017 | 23–29 MPG | 3.5L 6-cyl | $19,749 | 12 listings |
| 2016 | 23–30 MPG | 3.5L 6-cyl | $19,990 | 5 listings |
| 2015 | 23 MPG | 3.5L 6-cyl | $13,995 | 9 listings |
| 2014 | 23–30 MPG | 3.5L 6-cyl | — | — |
| 2012 | 20 MPG | 3.7L 6-cyl | — | — |
| 2011 | 20 MPG | 3.7L 6-cyl | — | — |
| 2010 | 18 MPG | 3.7L 6-cyl | — | — |
| 2009 | 18 MPG | 3.7L 6-cyl | — | — |
| 2008 | 19 MPG | 3.5L 6-cyl | — | — |
| 2007 | 19 MPG | 3.5L 6-cyl | — | — |
| 2006 | 19 MPG | 3.5L 6-cyl | — | — |
| 2005 | 19 MPG | 3.5L 6-cyl | — | — |
2020 Acura RLX: engines & MPG
The 2020 RLX was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 23 to 28 MPG. Used 2020 models currently list for a median of $30,290 on VehiSales (6 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | Automatic (AM-S7) | Premium | 28 | 29 | 28 MPG |
| RLX | 3.5L 6-cyl | Automatic (S10) | Premium | 20 | 29 | 23 MPG |
2019 Acura RLX: engines & MPG
The 2019 RLX was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 23 to 28 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | Automatic (AM-S7) | Premium | 28 | 29 | 28 MPG |
| RLX | 3.5L 6-cyl | Automatic (S10) | Premium | 20 | 29 | 23 MPG |
2018 Acura RLX: engines & MPG
The 2018 RLX was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 23 to 28 MPG. Used 2018 models currently list for a median of $20,995 on VehiSales (15 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | Automatic (AM-S7) | Premium | 28 | 29 | 28 MPG |
| RLX | 3.5L 6-cyl | Automatic (S10) | Premium | 20 | 29 | 23 MPG |
2017 Acura RLX: engines & MPG
The 2017 RLX was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 23 to 29 MPG. Used 2017 models currently list for a median of $19,749 on VehiSales (12 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | Automatic (AM-S7) | Premium | 29 | 30 | 29 MPG |
| RLX | 3.5L 6-cyl | Automatic (S6) | Premium | 20 | 30 | 23 MPG |
2016 Acura RLX: engines & MPG
The 2016 RLX was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 23 to 30 MPG. Used 2016 models currently list for a median of $19,990 on VehiSales (5 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | Automatic (AM7) | Premium | 28 | 31 | 30 MPG |
| RLX | 3.5L 6-cyl | Automatic (S6) | Premium | 20 | 30 | 23 MPG |
2015 Acura RLX: engines & MPG
The 2015 RLX was EPA-rated in 1 version (3.5L 6-cyl), with combined economy of 23 MPG. Used 2015 models currently list for a median of $13,995 on VehiSales (9 for sale).
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | Automatic (S6) | Premium | 20 | 30 | 23 MPG |
2014 Acura RLX: engines & MPG
The 2014 RLX was EPA-rated in 2 versions (3.5L 6-cyl), with combined economy from 23 to 30 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RLX Hybrid | 3.5L 6-cyl | Automatic (S7) | Premium | 28 | 31 | 30 MPG |
| RLX | 3.5L 6-cyl | Automatic (S6) | Premium | 20 | 30 | 23 MPG |
2012 Acura RLX: engines & MPG
The 2012 RLX was EPA-rated in 1 version (3.7L 6-cyl), with combined economy of 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.7L 6-cyl | Automatic (S6) | Premium | 17 | 24 | 20 MPG |
2011 Acura RLX: engines & MPG
The 2011 RLX was EPA-rated in 1 version (3.7L 6-cyl), with combined economy of 20 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.7L 6-cyl | Automatic (S6) | Premium | 17 | 24 | 20 MPG |
2010 Acura RLX: engines & MPG
The 2010 RLX was EPA-rated in 1 version (3.7L 6-cyl), with combined economy of 18 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.7L 6-cyl | Automatic (S5) | Premium | 16 | 22 | 18 MPG |
2009 Acura RLX: engines & MPG
The 2009 RLX was EPA-rated in 1 version (3.7L 6-cyl), with combined economy of 18 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.7L 6-cyl | Automatic (S5) | Premium | 16 | 22 | 18 MPG |
2008 Acura RLX: engines & MPG
The 2008 RLX was EPA-rated in 1 version (3.5L 6-cyl), with combined economy of 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.5L 6-cyl | Automatic (S5) | Premium | 16 | 24 | 19 MPG |
2007 Acura RLX: engines & MPG
The 2007 RLX was EPA-rated in 1 version (3.5L 6-cyl), with combined economy of 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.5L 6-cyl | Automatic (S5) | Premium | 16 | 24 | 19 MPG |
2006 Acura RLX: engines & MPG
The 2006 RLX was EPA-rated in 1 version (3.5L 6-cyl), with combined economy of 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.5L 6-cyl | Automatic (S5) | Premium | 16 | 24 | 19 MPG |
2005 Acura RLX: engines & MPG
The 2005 RLX was EPA-rated in 1 version (3.5L 6-cyl), with combined economy of 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| RL | 3.5L 6-cyl | Automatic (S5) | Premium | 16 | 24 | 19 MPG |
Frequently asked questions
What MPG does an Acura RLX get?
Depending on year and engine, EPA combined ratings for the RLX range from 18 to 30 MPG. The most efficient rated version is the 2016 model year.
What engines does the 2020 Acura RLX have?
The 2020 RLX was EPA-rated with 3.5L 6-cyl engines — see the 2020 table above for each version's exact city/highway figures.
Does the Acura RLX require premium gas?
Yes — every EPA-rated gas RLX version specifies premium gasoline.
Is there a hybrid or electric RLX?
Yes — the ratings above include hybrid versions; look for them in the per-year tables.
https://vehisales.com/research/fuel-economy/acura/rlx.
See also: Acura RLX hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].