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April 20, 1999 Service bulletin

Some j-car and s-truck models may exhibit increased oil consuption on engine built before october 27, 1997

GMC technical service bulletin 99105 for 1998 GMC GMC, 1998 Chevrolet Chevrolet and 1998 Pontiac Pontiac.

Bulletin number
99105
Component
Engine and engine cooling: engine: gasoline
Summary
Some j-car and s-truck models may exhibit increased oil consuption on engine built before october 27, 1997. Tt

Owners of these vehicles have filed 7 complaints in the engine category.

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