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 Cooling When Trailer Towing
The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑18. ...

Brake System Messages
SERVICE BRAKE SYSTEM This message displays along with the brake system warning light if there is a problem with the brake system. See Brake System Warning Light on page 5‑21. If this message ap ...

Tire Chains
WARNING If the vehicle has dual wheels or P265/65R18, P275/55R20, LT265/70R17, LT265/70R18, LT265/60R20, P285/50R20, P285/45R22 or 285/45R22 size tires, do not use tire chains. They can damage the ve ...