Special Tools
EN 28410 Gasket Remover
For equivalent regional tools, refer toSpecial Tools
Cleaning ProcedureRemove any old thread sealant, gasket material or sealant using EN 28410 remover.Clean the oil pan and oil pan components in solvent.Clean out debris from the bolt holes.Warning:Refer toSafety Glasses Warning.
Dry the oil pan and oil pan components with compressed air.Inspection Procedure
Inspect the exterior of the oil pan for the following conditions:Dents or damage to the exterior-(2)Damage to the drain plug or drain plug hole-(1)Damage to the brace mounting bosses-(4)Damage to the mounting bosses-(3)

Inspect the interior of the oil pan for the following conditions:Gouges or damage to the oil pan sealing surfaces-(1)Damage to the oil pan scraper mounting holes-(2)Damage to the bolt holes-(3)Damage to the engine oil level switch hole-(4)Repair or replace the oil pan and/or oil pan components as necessary.
Crankcase Ventilation System Inspection/Diagnosis (Without Turbocharger) Emissions PCV
Engine Front Cover Cleaning and Inspection Engine Block Cylinder Block Cyl Block Front CoverFuel (Gasoline)
GM recommends the use of TOP
TIER detergent gasoline to keep the
engine cleaner and reduce engine
deposits. See www.toptiergas.com
for a list of TOP TIER detergent
gasoline marketers and applicable
countries.
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol ...