Buick Regal Owners & Service Manuals

Buick Regal: Fuel (2.0L Turbo Engine)

Premium Recommended Fuel

Premium Recommended Fuel

Use premium 93 octane unleaded gasoline in your vehicle. Unleaded gasoline with an octane rating as low as 87 may be used, but it will reduce performance and fuel economy.

Fuel (3.6L Engine)

Regular Fuel

Regular Fuel

Use only unleaded gasoline rated 87 octane or higher in your vehicle.

Do not use gasoline with an octane rating lower as it may result in vehicle damage and lower fuel economy.

E85 or FlexFuel

No E85 or FlexFuel

No E85 or FlexFuel

Gasoline-ethanol fuel blends greater than E15 (15% ethanol by volume), such as E85, cannot be used in this vehicle.

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     Engine Oil Life System

    The engine oil life system calculates engine oil life based on vehicle use and displays the CHANGE ENGINE OIL SOON message when it is time to change the engine oil and filter. The oil life system sho

     Keys, Doors, and Windows

     Keys and Locks

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     Special Tools and Equipment

    SPECIAL TOOLS EL - 50334 - 20 Multi-Media Interface Tester (MIT) EL - 50334 - 50 USB Cable and Adapter Kit EL-48028 Digital Radio Test Antenna EL-49903 - 1 Test Antenna, Navn- Cell Comn EL-49903 - 2 Adapter Cable-UHF RT Angle EL-49903 - 3A Combiner Kit, Test Antenna EL-50334 - 12 Infotainment

     Fuel Rail and Injectors Cleaning and Inspection

    Special Tools EN-47909 Injector Bore and Sleeve Cleaning Kit EN-49245 Fuel Injector Seal Install/Sizer EN-50791 Fuel Injector Nozzle Installer EN-51105 Fuel Injector Seal Installer For equivalent regional tools, refer to Special Tools. 1. Remove and inspect the fuel rail insulator assemblies

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