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2005
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Sierra 1500 4WD V6-4.3L VIN X
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Engine/Fuel System - Oil/Fuel Additive Recommendations
Engine/Fuel System - Oil/Fuel Additive Recommendations
This TSB number 05-00-89-072, dated 10/24/05 has been superceded by TSB number 05-00-89-072B , dated 06/17/08