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 TerminologySpark Plug Inspection Engine Control
Spark Plug UsageEnsure that the correct spark plug is installed. An incorrect spark plug causes driveabilityconditions. Refer to the Electronic Parts Catalog.Spark Plug InspectionInspect the terminal post (1) for damage.Inspect for a bent or broken terminal post-(1).Test for a loose terminal post (1 ...