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Savana 2500 V8-6.0L VIN U
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Fuel System - GM Fuel System Treatment PLUS(R) Info.
Fuel System - GM Fuel System Treatment PLUS(R) Info.
This TSB number 05-00-89-078B, dated 02/06/08 has been superceded by TSB number 05-00-89-078C , dated 04/19/12