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:

Engine Coolant Heater
The engine heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below −18°C (0°F). Vehicles with an engine heater should be plugged ...

Convenience Net
This vehicle may have a convenience net located in the rear of the vehicle. Attach it to the cargo tie&-downs for storing small loads. Do not use the net to store heavy loads. ...

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...