Gasoline Specifications (U.S. and Canada Only)
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 Fuel Additives for additional information.
See also:
Digital Speedometer
The speedometer shows how fast the vehicle is moving in either kilometers
per hour (km/h) or miles per hour (mph). The speedometer cannot be reset. ...
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if ...
Wiper Blades
Wiper blades need to be cleaned
and kept in good condition to
provide a clear view.
- Signs of wear include streaking,
skipping across the windshield,
and worn or split rubber.
- Trained dea ...






