Vehicles with a yellow fuel cap can use either unleaded gasoline or ethanol fuel containingup to 85% ethanol (E85). SeeE85 or FlexFuel. For all other vehicles, use only the unleaded gasoline described underRecommended Fuel.
Scan Tool Snapshot Procedure
Vibration Theory and TerminologyGM Oil Life System Resetting
When the system has calculated that oil life has beendiminished, it will indicate that an oil change is necessary. ACHANGE ENGINE OIL light will come on. Change the engine oil as soonas possible within the next 1-000-km(600-miles). It is possible that, if driving under thebest conditions, the oil li ...