Which Car Has

Kia K4

Transmission, start-stop, premium fuel and flex-fuel by model year, 2025–2027

TransmissionThe 2027 Kia K4 is offered with a CVT or an 8-speed automatic, depending on configuration.

Auto start-stopNo. EPA lists no auto start-stop on any 2027 Kia K4 configuration it tested.

Premium fuelEPA tested the 2027 Kia K4 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 K4 configuration as a flex-fuel vehicle (FFV).

2027 at a glance

5 configurations tested by EPA

CVTSome
3 of 5
Belt or chain CVT
ManualNone
0 of 5
Not offered
Auto start-stopNone
0 of 5
Premium fuelNone
0 of 5
EPA test fuel
Flex-fuel (E85)None
0 of 5
No FFV versions

EPA lists no manual transmission for any Kia K4 from 2025–2027.

Kia K4 features by model year

Which Kia K4 model years have each feature. Each cell links to that year's configurations.
’25’26’27
CVT2025 CVT: Some2026 CVT: Some2027 CVT: Some
Manual2025 Manual: None2026 Manual: None2027 Manual: None
Automated manual2025 Automated manual: None2026 Automated manual: None2027 Automated manual: None
Automatic2025 Automatic: Some2026 Automatic: Some2027 Automatic: Some
Start-stop2025 Start-stop: None2026 Start-stop: None2027 Start-stop: None
Premium fuel2025 Premium fuel: None2026 Premium fuel: None2027 Premium fuel: None
Flex-fuel2025 Flex-fuel: None2026 Flex-fuel: None2027 Flex-fuel: None
All configurationsSome configurationsNoneNot reported by EPA

Configurations by year

2027 Kia K4

5 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K41.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K4 4DR with DMS2.0L 4-cylCVTAV-S1Front-WheelNoRegularNo
K4 Hatchback1.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K4 Hatchback2.0L 4-cylCVTAV-S1Front-WheelNoRegularNo
K4 without DMS2.0L 4-cylCVTAV-S1Front-WheelNoRegularNo

2026 Kia K4

5 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K41.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K4 4DR w/ DMS2.0L 4-cylCVTAV-S1Front-WheelNoRegularNo
K4 Hatchback1.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K4 Hatchback2.0L 4-cylCVTAV-S1Front-WheelNoRegularNo
K4 without DMS2.0L 4-cylCVTAV-S1Front-WheelNoRegularNo

2025 Kia K4

3 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
K41.6L 4-cyl turbo8-speed automaticS8Front-WheelNoRegularNo
K42.0L 4-cylCVTAV-S1Front-WheelNoRegularNo
K42.0L 4-cylCVTAV-S1Front-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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