Buick Enclave: Recommended Fuel - Fuel - Driving and Operating - Buick Enclave Owner's ManualBuick Enclave: Recommended Fuel

Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible.

If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.

    Fuel
    Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline ...

    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 methylcyclopentadie ...

    See also:

    Canadian Vehicle Owners
    Propriétaires Canadiens ► French language copy of this manual can be obtained from your dealer or from: On peut obtenir un exemplaire de ce guide en français auprès du c ...

    Entering an Address and Point of Interest, and Storing Preset Destinations
    Entering an Address Enter a destination by inputting the city name first: 1. Press O to turn the system on. 2. A caution may appear. Press OK to proceed. 3. Press DEST. 4. Press2(Address Entry). ...

    Safety Belts
    This section of the manual describes how to use safety belts properly. It also describes some things not to do with safety belts. WARNING Do not let anyone ride where a safety belt cannot be wo ...