Buick Regal: Fuel (2.0L Turbo Engine)
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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)
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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
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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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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
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Special Tools
EN 38188 Cylinder Head Broken Bolt Extractor Kit - or equivalent aftermarket
tool
For equivalent regional tools, refer to Special Tools.
1.
Remove and discard the cylinder head bolts (1).
CAUTION: In order to prevent damage to the valves and injectors during
cylinder head
removal,
Preliminary Procedures
1. Remove the rear tire and wheel assembly.
2. Shock Absorber Replacement (GNC)Shock Absorber Replacement (GNQ).
CAUTION: Refer to Fastener Caution.
Rear Shock Absorber NutTighten 20 N.m (15 lb ft)
Rear Suspension Mount Upper Cup
Rear Shock Absorber Mount
Rear Shock A