See also:

DVD Distortion
Video distortion can occur when operating cellular phones, scanners, CB radios, Global Positioning Systems (GPS)*, two-way radios, mobile faxes, or walkie talkies. It might be necessary to turn off ...

Fuel
For diesel engine vehicles, see “Fuel for Diesel Engines” in the Duramax Diesel Supplement. For Vehicles with gasoline engines, please read this. ...

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 heavy braking and sudden turns. ...