Gasoline Specifications

At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 in Canada. Some gasolines may contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). General Motors recommends against the use of gasolines containing MMT.

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    Auto Fan Speed
    This will allow you to select the automatic fan speed. It can be adjusted to run lower or higher than normal. Press SELECT when Auto Fan Speed is highlighted to open the menu. Turn the Menu ...

    Climate and Air Quality
    Select the Climate and Air Quality menu and the following may be displayed: • Auto Fan Speed • Air Quality Sensor • Auto Heated Seats • Air Conditioning Mode • Remote Start Auto Hea ...

    Active Fuel Management™
    Your vehicle’s V8 engine may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on your driving conditions. When less po ...