At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT).
We recommend against the use of gasolines containing MMT. See Additives for additional information.
Gasoline Octane
California FuelChevrolet Cobalt Owners Manual. DIC Vehicle Personalization
Your vehicle has personalization capabilities that allow
you to program certain features to a preferred setting.
All of the features listed may not be available on your
vehicle. Only the features available will be displayed on
the DIC.
The default settings for the features were set when your
v ...