Gasoline Specifications
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 in Canada. Some gasolines may contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). General Motors recommends against the use of gasolines containing MMT.
See also:
Towing with a Stability Control
System
When towing, the sound of the
stability control system might be
heard. The system is reacting to the
vehicle movement caused by the
trailer, which mainly occurs during
cornering. This is nor ...
STEP ON BRAKE TO
RELEASE PARK BRAKE
This message is displayed if you
attempt to release the electric
parking brake without the brake
pedal applied. See Parking Brake for more information. ...
Limited-Slip Differential
Vehicles with a limited-slip
differential can give more traction on
snow, mud, ice, sand, or gravel.
It works like a standard differential
most of the time, but when traction
is low, this fea ...