Which Car Has

Infiniti G25

Transmission, start-stop, premium fuel and flex-fuel by model year, 2011–2012

TransmissionThe 2012 Infiniti G25 uses a 7-speed automatic in every configuration EPA tested.

Auto start-stopEPA did not report auto start-stop data for the 2012 Infiniti G25.

Premium fuelEPA tested the 2012 Infiniti G25 on premium fuel; your owner's manual or fuel-door label is the authority.

Flex-fuel (E85)No. EPA does not list any 2012 Infiniti G25 configuration as a flex-fuel vehicle (FFV).

2012 at a glance

2 configurations tested by EPA

CVTNone
0 of 2
No CVT
ManualNone
0 of 2
Not offered
Auto start-stopNot reported
–
EPA reports from 2013
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 Infiniti G25 from 2011–2012.

Infiniti G25 features by model year

Which Infiniti G25 model years have each feature. Each cell links to that year's configurations.
’11’12
CVT2011 CVT: None2012 CVT: None
Manual2011 Manual: None2012 Manual: None
Automated manual2011 Automated manual: None2012 Automated manual: None
Automatic2011 Automatic: All2012 Automatic: All
Start-stop2011 Start-stop: Not reported2012 Start-stop: Not reported
Premium fuel2011 Premium fuel: All2012 Premium fuel: All
Flex-fuel2011 Flex-fuel: None2012 Flex-fuel: None
All configurationsSome configurationsNoneNot reported by EPA

Configurations by year

2012 Infiniti G25

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
G252.5L 6-cyl7-speed automaticS7Rear-WheelNot reportedPremiumNo
G25x2.5L 6-cyl7-speed automaticS7All-WheelNot reportedPremiumNo

2011 Infiniti G25

2 configurations
EPA model nameEngineTransmissionDriveStart-stopEPA test fuelFlex-fuel
G252.5L 6-cyl7-speed automaticS7Rear-WheelNot reportedPremiumNo
G25x2.5L 6-cyl7-speed automaticS7All-WheelNot reportedPremiumNo

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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