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. Content Theft-Deterrent
Your vehicle may have a
content theft-deterrent
alarm system.
Arming the System
With the ignition off, you can arm the system by
pressing the remote keyless entry transmitter
lock button.
The system will arm after either of these things occur:
- Thirty seconds after all the doors are close ...