Fuel

For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement.

For Vehicles with gasoline engines, please read this.

See also:

Passenger Sensing System
United States Canada The passenger sensing system will turn off the right front passenger frontal airbag under certain conditions. The driver airbag, seat&-mounted side impact airbags, a ...

Lamps
Properly working headlamps, taillamps, and brake lamps are important to see and be seen on the road. • Signs that the headlamps need attention include dimming, failure to light, cracking, or damage ...

Engine Coolant Heater
The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant ...