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
SEE MORE:
Preliminary Procedure
Remove the front tire and wheel assembly.
Steering Linkage Inner Tie Rod Nut
Procedure
Place match marks on the steering linkage inner tie rod nut and the
steering linkage
inner tie rod.
NOTE:
Do NOT tighten the steering linkage inner tie rod nut during installation.
NOTE: The following steps must be completed before using the symptom
tables:
1. Perform the Diagnostic System Check - Vehicle before using the HVAC System
Malfunction
procedure in order to verify that all of the following are true:
There are no DTCs set.
The control modules can communicate via