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. Sensing System for Passenger Airbag
The passenger sensing system, if equipped, will turn off
the right front passenger frontal airbag under certain
conditions. The driver airbags and roof-rail airbags are
not affected by this.
If the vehicle has a passenger sensing system, the
passenger airbag status indicator will be visible on ...