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:

Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps
To replace one of these bulbs: 1. Open the tailgate. See Tailgate on page 2‑10 for more information. 2. Remove the two rear lamp assembly screws near the tailgate latch strikerpost and pull ...

Following Distance
Stay at least twice as far behind the vehicle ahead as you would when driving the vehicle without a trailer. This can help to avoid situations that require heavy braking and sudden turns. ...

AM-FM Radio and AM-FM Radio with CD Player
To set the clock: 1. Turn the ignition key to ACC/ ACCESSORY or ON/RUN, then press the button to turn the radio on. 2. Press the button until the hour numbers begin to flash, then turn the knob t ...