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.
Chevrolet Cobalt Service & Repair Manual. Precautions
Air Bag System
1.
Prior to disconnecting or servicing
any air bag components, disarm air bag system as outlined under
"Air Bag System Disarming & Arming."
2.
Air bag system components or seat belt
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