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 Service & Repair Manual. Air Bag System Disarming & Arming
Disarming
The Sensing and Diagnostic
Module (SDM) can maintain enough voltage to cause air bag deployment for
up to 10 minutes after the ignition is turned off and the battery is disconnected.
Servicing the Supplemental air bag (SIR) system during this period may result
in ac ...