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:

Using this Manual
To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found. ...

Rear Seats
The vehicle's rear seat has head restraints in the outboard seating positions that cannot be adjusted. Rear outboard head restraints are not designed to be removed. ...

Range Selection Mode
Range Selection Mode The Range Selection Mode switch, if equipped, is located on the shift lever. To enable the Range Selection feature: 1. Move the column shift lever to the M(Manual) position ...