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:
When Using the Manual Transfer Case
• Shifts into or out of Four-Wheel Drive Low or N (Neutral) should be made using quick motions to avoid excessive gear grinding.
Shifting slowly may make it more difficult to shift.
• You may no ...
How to Add Automatic Transmission Fluid
Refer to Recommended Fluids and Lubricants on page 11‑12 to determine what kind of transmission fluid to use.
Using a funnel, add fluid down the transmission dipstick tube only after checking t ...
Engine Hour Meter Display
The Driver Information Center (DIC) can also display the number of hours the engine has run. To display the engine hours, turn the ignition off, then press and hold the reset button for at least four ...