Acura RLX
Transmission, start-stop, premium fuel and flex-fuel by model year, 2014–2020
TransmissionThe 2020 Acura RLX is offered with a 10-speed automatic or a 7-speed automated manual, depending on configuration.
Auto start-stopIt depends on configuration: 1 of 2 2020 Acura RLX configurations EPA tested have auto start-stop.
Premium fuelEPA tested the 2020 Acura RLX on premium fuel; your owner's manual or fuel-door label is the authority.
Flex-fuel (E85)No. EPA does not list any 2020 Acura RLX configuration as a flex-fuel vehicle (FFV).
2020 at a glance
2 configurations tested by EPA
EPA lists no manual transmission for any Acura RLX from 2014–2020.
Acura RLX features by model year
Configurations by year
2020 Acura RLX
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 10-speed automaticS10 | Front-Wheel | No | Premium | No |
| RLX Hybrid | 3.5L 6-cyl hybrid | 7-speed automated manualAM-S7 | All-Wheel | Yes | Premium | No |
2019 Acura RLX
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 10-speed automaticS10 | Front-Wheel | No | Premium | No |
| RLX Hybrid | 3.5L 6-cyl hybrid | 7-speed automated manualAM-S7 | All-Wheel | Yes | Premium | No |
2018 Acura RLX
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 10-speed automaticS10 | Front-Wheel | No | Premium | No |
| RLX Hybrid | 3.5L 6-cyl hybrid | 7-speed automated manualAM-S7 | All-Wheel | Yes | Premium | No |
2017 Acura RLX
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 6-speed automaticS6 | Front-Wheel | No | Premium | No |
| RLX Hybrid | 3.5L 6-cyl hybrid | 7-speed automated manualAM-S7 | All-Wheel | Yes | Premium | No |
2016 Acura RLX
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 6-speed automaticS6 | Front-Wheel | No | Premium | No |
| RLX Hybrid | 3.5L 6-cyl hybrid | 7-speed automated manualAM7 | All-Wheel | Yes | Premium | No |
2015 Acura RLX
1 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 6-speed automaticS6 | Front-Wheel | No | Premium | No |
2014 Acura RLX
2 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| RLX | 3.5L 6-cyl | 6-speed automaticS6 | Front-Wheel | No | Premium | No |
| RLX Hybrid | 3.5L 6-cyl hybrid | 7-speed automaticS7 | All-Wheel | Yes | Premium | No |
Check before you buy or refuel Confirm on the window sticker, owner's manual or with the dealer. Trims and options can differ from the configurations EPA tested.
About premium fuel EPA data shows the fuel a vehicle was tested on. It does not say whether premium is required or only recommended. Your owner's manual or fuel-door label is the authority.
Before using E85 Confirm the vehicle is a flex-fuel vehicle (FFV) in the owner's manual, or look for a yellow gas cap or an "FFV" badge. Not every version of a model is flex-fuel.
Source: U.S. EPA / Department of Energy vehicle data fromFuelEconomy.gov, data as of September 29, 2026.See how we classify vehicles.
More Acura lists
- Acura models with a CVT
- Acura models without a CVT
- Acura models with a manual transmission
- Acura models with an automated manual transmission
- Acura models with a conventional automatic transmission
- Acura models with auto start-stop
- Acura models without auto start-stop
- Acura models EPA tested on premium fuel