Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
See also:
Checking Coolant
The engine coolant
recovery tank is in the
engine compartment on
the passenger’s side of
the vehicle. The cap has
this symbol on it.
The vehicle must be on a level surface. When
your engine ...
Brakes
Brakes stop the vehicle and are
crucial to safe driving.
• Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
• Trained dealer technicians hav ...
Customer Assistance Offices
Buick encourages customers to call the toll-free number
for assistance. However, if a customer wishes to
write or e-mail Buick, the letter should be addressed to:
United States — Customer Assis ...