Gasoline Specifications

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  for additional information.

    See also:

    OnStar® Virtual Advisor
    OnStar® Virtual Advisor is a feature of OnStar® Hands-Free Calling that uses your minutes to access location-based weather, local traffic reports, and stock quotes. By pressing the phone button ...

    Memory Seat and Mirrors
    On vehicles with the memory feature the buttons are located on the driver’s door. 1: Saves the seating position for driver 1. 2: Saves the seating position for driver 2. : Recalls the easy exi ...

    Fuel E85 (85% Ethanol)
    If the vehicle has the 3.9L V6 engine (VIN Code M), you can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel. In all other engines, use only the unleaded ...