Buick LaCrosse: Recommended Fuel - Fuel - Driving and Operating - Buick LaCrosse Owners ManualBuick LaCrosse: 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 ga ...

    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 methylcyclopen ...

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    Erasing HomeLink Buttons
    To erase programming from the three Home- Link buttons (individual buttons cannot be erased but can be “reprogrammed” as outlined below), follow the step noted: 1. Press and hold the two outer ...

    CD Player
    The CD player can play audio CDs and MP3 CDs. The CD player will not play 8 cm (3 in) CDs. Care of CDs Sound quality can be reduced due to disc quality, recording method, quality of the music recor ...

    Resuming a Set Speed
    If the cruise control is set at a desired speed and then the brakes are applied or the is pressed, the cruise control is disengaged without erasing the set speed from memory. Once the vehicl ...