Kia K5
Transmission, start-stop, premium fuel and flex-fuel by model year, 2021–2027
TransmissionThe 2027 Kia K5 is offered with an 8-speed automatic or an 8-speed automated manual, depending on configuration.
Auto start-stopIt depends on configuration: 1 of 4 2027 Kia K5 configurations EPA tested have auto start-stop.
Premium fuelEPA tested the 2027 Kia K5 on regular gasoline, not premium; your owner's manual or fuel-door label is the authority.
Flex-fuel (E85)No. EPA does not list any 2027 Kia K5 configuration as a flex-fuel vehicle (FFV).
2027 at a glance
4 configurations tested by EPA
EPA lists no manual transmission for any Kia K5 from 2021–2027.
Kia K5 features by model year
Configurations by year
2027 Kia K5
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 AWD | 2.5L 4-cyl | 8-speed automaticS8 | All-Wheel | No | Regular | No |
| K5 w/Stop-Start | 2.5L 4-cyl | 8-speed automaticS8 | Front-Wheel | Yes | Regular | No |
2026 Kia K5
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 AWD | 2.5L 4-cyl | 8-speed automaticS8 | All-Wheel | No | Regular | No |
| K5 w/Stop-Start | 2.5L 4-cyl | 8-speed automaticS8 | Front-Wheel | Yes | Regular | No |
2025 Kia K5
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl | 8-speed automaticS8 | Front-Wheel | Yes | Regular | No |
| K5 AWD | 2.5L 4-cyl | 8-speed automaticS8 | All-Wheel | No | Regular | No |
2024 Kia K5
3 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 1.6L 4-cyl turbo | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 AWD | 1.6L 4-cyl turbo | 8-speed automaticS8 | All-Wheel | No | Regular | No |
2023 Kia K5
3 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 1.6L 4-cyl turbo | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 AWD | 1.6L 4-cyl turbo | 8-speed automaticS8 | All-Wheel | No | Regular | No |
2022 Kia K5
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 1.6L 4-cyl turbo | 8-speed automaticS8 | Front-Wheel | Yes | Regular | No |
| K5 | 1.6L 4-cyl turbo | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 AWD | 1.6L 4-cyl turbo | 8-speed automaticS8 | All-Wheel | No | Regular | No |
2021 Kia K5
4 configurations
| EPA model name | Engine | Transmission | Drive | Start-stop | EPA test fuel | Flex-fuel |
|---|---|---|---|---|---|---|
| K5 | 1.6L 4-cyl turbo | 8-speed automaticS8 | Front-Wheel | Yes | Regular | No |
| K5 | 1.6L 4-cyl turbo | 8-speed automaticS8 | Front-Wheel | No | Regular | No |
| K5 | 2.5L 4-cyl turbo | 8-speed automated manualAM-S8 | Front-Wheel | No | Regular | No |
| K5 AWD | 1.6L 4-cyl turbo | 8-speed automaticS8 | All-Wheel | No | Regular | 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 Kia lists
- Kia models with a CVT
- Kia models without a CVT
- Kia models with a manual transmission
- Kia models with an automated manual transmission
- Kia models with a conventional automatic transmission
- Kia models with auto start-stop
- Kia models without auto start-stop
- Kia models EPA tested on premium fuel
