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. Vehicle, Road Test
The vehicle road test purpose
is to verify a customer concern or to verify a repair has been completed
correctly.
For transmission road test, ensure
that transmission or transaxle is brought to operating temperature and all
forward gears and reverse gear engage pr ...