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 9‑75 for additional information.

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    Service Publications Ordering Information
    Service Manuals Service Manuals have the diagnosis and repair information on the engines, transmission, axle, suspension, brakes, electrical, steering, body, etc. Service Bulletins Service Bulletin ...

    Exterior
    Painted black and trimmed in chrome, my Yukon Denali test vehicle looked more like its Escalade corporate cousin than a tough truck. The Yukon is probably the safest-looking of the three siblings, ...

    Making Turns
    Notice: Making very sharp turns while trailering could cause the trailer to come in contact with the vehicle. The vehicle could be damaged. Avoid making very sharp turns while trailering. When tu ...