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. Fog Lamps
For vehicles with fog lamps, the button is located on the
instrument panel, to the left of the steering wheel.
The ignition must be on to use the fog lamps.
: Press to turn the fog lamps
on off. An indicator light
on the button comes on when the fog lamps are on.
The parking lamps automatical ...