Gasoline Specifications (U.S. and Canada Only)

At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada.

Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT. See Fuel Additives on page 9‑41 for additional information.

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    Exterior
    The Yukon has a one-piece grille and taller headlights than its sister Tahoe, with jewel-like bezels and a wider, lower air dam. The rest of the body features blocky fenders, long rear-quarter win ...

    Using the Radio
    (Power/Volume): Press to turn the system on and off. Turn clockwise or counterclockwise to increase or decrease the volume. (Information) (AM-FM Radio and AM-FM Radio with CD): Press to switch the ...

    License Plate Lamp
    To replace one of these bulbs: 1. Reach under the rear bumper for the bulb socket. 2. Turn the bulb socket counterclockwise and pull the bulb socket out of the lamp assembly. 3. Pull the old bulb ...