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. Engine Liters/ CID/ Type
SFI/OBD II system. Equipped w/MIL.
Engine Liters/ CID/ Type
Certif- ication Type
Trans. Type
Comput- erized Engine Manage- ment
Fuel Induc- tion System Type
Ignition Timi ...