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. HVAC Blower Motor Switch R&R
Refer to Fig. 1
when performing the following procedure.
1.
Disconnect blower motor resistor electrical
connector.
2.
Unsnap blower motor resistor from HVAC
module and remove.
3.
Revers ...