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. Floor Console
1.
Remove clips and floor console cup
holder.
2.
Remove mounting bolt and floor console
armrest, Fig. 1.
3.
Pull park brake lever up, then disconnect
park brake lever opening trim plate retaining ...