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. Reading Lamp Bulb, Replace
1.
Remove reading lamp lens (1) from lamp,
Fig. 1.
2.
Remove bulb (2) from reading lamp,
Fig. 1.
3.
Reverse procedure to install.
Fig. 1 Reading lamp bulb removal ...