OPERATION
Engine Tuning:
During the download the GT will prompt all gasoline users to select the desired engine tune.
At this point simply specify the engine tune; the table below illustrates the three settings
available: Premium, Regular, and Stock. Diesel users do not have to select an engine tune,
the diesel GT automatically loads the tuning information into the vehicle.
Gasoline engine tuning options
ATTENTION: Downloading the “Premium” setting requires that the vehicle run 91+ octane fuel. Failure to
run at least 91 octane fuel with the “Premium” setting may result in engine damage.
SETTING
PEAK HP
PEAK TQ
OCTANE
Premium
up to 35
up to 40
91+ octane
Regular
15-20
15-20
85+ octane
Stock
Stock
Stock
OEM Spec.
