To keep fuel systems clean, TOP TIER detergent gasoline is recommended. See Fuel (Gasoline).
If TOP TIER detergent gasoline is not available, one bottle of GM Fuel System Treatment Cleaner added to the fuel tank at every engine oil change, can help. GM Fuel System Treatment Cleaner is the only gasoline additive recommended by General Motors. It is available at your dealer.
California Fuel Requirements
(Gasoline)
Fuel for Diesel EnginesPiston and Connecting Rod Assemble Engine Block Cylinder Block Piston Assembly
Special ToolsEN-46745Piston Pin Retainer Remover andInstallerFor equivalent regional tools, refer toSpecial Tools.Note:Install the piston onto the connecting rod with the arrow ontop of the piston toward the front oriented toward the front of theengine.Note:The cast boss-(1) can be in either or both ...