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 ...

    See also:

    Start
    Ignition switch with remote key inserted ( see page 86 for more information on ignition modes) WARNING Before starting the engine: Fasten the seat belt. Check that the seat, steering ...

    First aid kit
    Space is provided in the luggagecompartment. First aid kit ...

    Control panel buttons — color screen with Navigation System (if so equipped)
    1. Display screen 2. MAP button* 3. DEST button* 4. ROUTE/VOICE button* 5. INFO button (P. 4-5) 6. SETTING button (P. 4-6) 7. Volume control knob 8. (brightness control) button *For Navigat ...