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. Passing
Passing another vehicle on a two-lane road can be
dangerous. To reduce the risk of danger while passing:
- Look down the road, to the sides, and to
crossroads for situations that might affect a
successful pass. If in doubt, wait.
- Watch for traffic signs, pavement markings, and
lines that cou ...