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. Window Regulator R&R
Front
Coupe
Manual
1.
Remove interior trim panel.
2.
Remove water deflector.
3.
Move window to full up position and
secure in place with tape.
4.
Remove side door window regulato ...