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:
Brake Pedal Travel
See your dealer if the brake pedal does not return
to normal height, or if there is a rapid increase
in pedal travel. This could be a sign of brake
trouble. ...
Washing the Vehicle
To preserve the vehicle's finish, keep it clean by washing it often.
Do not wash the vehicle in direct sunlight and use a car washing soap.
Notice: Do not use cleaning agents that are petroleum base ...
2012 Buick Regal Review by Warren Brown
It was a good car, but something less than the “high-performance variant” of
the Buick Regal promised for market delivery in the spring of 2012. That will be
the overtly sporty Regal GS, with ...