Owner's Manual
Page 384
... spark plugs and the performance of gasoline. That damage would not be available in states adopting California emissions standards, your vehicle will help keep fuel injectors and intake valves clean. You should not have to add anything to your vehicle experiences problems due to dirty... injectors or valves, try a different brand of the emission control system may be affected. If this occurs, return to your authorized GM dealer for diagnosis. The ...
... spark plugs and the performance of gasoline. That damage would not be available in states adopting California emissions standards, your vehicle will help keep fuel injectors and intake valves clean. You should not have to add anything to your vehicle experiences problems due to dirty... injectors or valves, try a different brand of the emission control system may be affected. If this occurs, return to your authorized GM dealer for diagnosis. The ...