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. Ignition Lock, Replace
1.
Lower steering column to lowest position.
2.
Remove steering column upper and lower
trim covers.
3.
Remove theft deterrent control module.
4.
Depress first retainer through loc ...