Which Car Has

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

CVTNone
0 of 4
No CVT
ManualNone
0 of 4
Not offered
Auto start-stopSome
1 of 4
Premium fuelNone
0 of 4
EPA test fuel
Flex-fuel (E85)None
0 of 4
No FFV versions

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 nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K52.5L 4-cyl8-speed automaticS8Front-WheelNoRegularNo
K5 AWD2.5L 4-cyl8-speed automaticS8All-WheelNoRegularNo
K5 w/Stop-Start2.5L 4-cyl8-speed automaticS8Front-WheelYesRegularNo

2026 Kia K5

4 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K52.5L 4-cyl8-speed automaticS8Front-WheelNoRegularNo
K5 AWD2.5L 4-cyl8-speed automaticS8All-WheelNoRegularNo
K5 w/Stop-Start2.5L 4-cyl8-speed automaticS8Front-WheelYesRegularNo

2025 Kia K5

4 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K52.5L 4-cyl8-speed automaticS8Front-WheelNoRegularNo
K52.5L 4-cyl8-speed automaticS8Front-WheelYesRegularNo
K5 AWD2.5L 4-cyl8-speed automaticS8All-WheelNoRegularNo

2024 Kia K5

3 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K51.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K5 AWD1.6L 4-cyl turbo8-speed automaticS8All-WheelNoRegularNo

2023 Kia K5

3 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K51.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K5 AWD1.6L 4-cyl turbo8-speed automaticS8All-WheelNoRegularNo

2022 Kia K5

4 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K51.6L 4-cyl turbo8-speed automaticS8Front-WheelYesRegularNo
K51.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K5 AWD1.6L 4-cyl turbo8-speed automaticS8All-WheelNoRegularNo

2021 Kia K5

4 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K51.6L 4-cyl turbo8-speed automaticS8Front-WheelYesRegularNo
K51.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K52.5L 4-cyl turbo8-speed automated manualAM-S8Front-WheelNoRegularNo
K5 AWD1.6L 4-cyl turbo8-speed automaticS8All-WheelNoRegularNo

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.

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