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 ...

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    During a call
    There are some options available during a call. Select one of the following displayed on the screen if necessary. ► Hang up Finish the call. ► Use Handset Transfer the call to th ...

    Bulb Replacement
    For the proper type of replacement bulbs, see Replacement Bulbs  . For any bulb-changing procedure not listed in this section, contact your dealer. ...

    Fuse box in the cargo compartment
    ► Open the tailgate. ► To open: insert a suitable object, e.g. a coin, into the slot of release button 1 on the cover. ► Turn release button 1 90° in the direction of the a ...