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. Audio Steering Wheel Controls
Vehicles with audio
steering wheel controls
could differ depending
on the vehicle's options.
Some audio controls
can be adjusted at the
steering wheel.
- (Volume): Press to
increase or to decrease
the radio volume.
(Next / Previous): Press to
change radio
stations, select tracks on ...