Engine Oil Additives
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you will need for good performance and engine protection.
See also:
Once a Month
• Tire inflation check. See Inflation - Tire Pressure.
• Tire wear inspection. See Tire Inspection and
Rotation. ...
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or
speech-impaired and who use Text Telephones (TTYs),
Buick has TTY equipment available at its Customer
Assistance Center. Any TTY user can co ...
Buying New Tires
GM has developed and matched specific tires for the vehicle.
The original equipment tires installed were designed to meet General Motors Tire Performance Criteria Specification (TPC Spec) system rati ...