Which Car Has

INEOS Automotive Grenadier

Transmission, start-stop, premium fuel and flex-fuel by model year, 2023–2025

TransmissionThe 2025 INEOS Automotive Grenadier uses an 8-speed automatic in every configuration EPA tested.

Auto start-stopYes. Every 2025 INEOS Automotive Grenadier configuration EPA tested has auto start-stop.

Premium fuelEPA tested the 2025 INEOS Automotive Grenadier on premium fuel; your owner's manual or fuel-door label is the authority.

Flex-fuel (E85)No. EPA does not list any 2025 INEOS Automotive Grenadier configuration as a flex-fuel vehicle (FFV).

2025 at a glance

2 configurations tested by EPA

CVTNone
0 of 2
No CVT
ManualNone
0 of 2
Not offered
Auto start-stopAll
2 of 2
Premium fuelAll
2 of 2
EPA test fuel
Flex-fuel (E85)None
0 of 2
No FFV versions

EPA lists no manual transmission for any INEOS Automotive Grenadier from 2023–2025.

INEOS Automotive Grenadier features by model year

Configurations by year

2025 INEOS Automotive Grenadier

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
Grenadier3.0L 6-cyl turbo8-speed automaticS84-WheelYesPremiumNo
Grenadier Trialmaster Edition3.0L 6-cyl turbo8-speed automaticS84-WheelYesPremiumNo

2024 INEOS Automotive Grenadier

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
Grenadier3.0L 6-cyl turbo8-speed automaticS84-WheelYesPremiumNo
Grenadier Trialmaster Edition3.0L 6-cyl turbo8-speed automaticS84-WheelYesPremiumNo

2023 INEOS Automotive Grenadier

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
Grenadier3.0L 6-cyl turbo8-speed automaticS84-WheelYesPremiumNo
Grenadier Trialmaster Edition3.0L 6-cyl turbo8-speed automaticS84-WheelYesPremiumNo

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.