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 Owners Manual. Easy Entry Seat (Coupe)
WARNING:
If the easy entry right front seat is not locked, it
can move. In a sudden stop or crash, the person
sitting there could be injured. After you have used
it, be sure to push rearward on an easy entry seat
to be sure it is locked.
WARNING:
If either seatback is not locked, it could mov ...