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Is Your Gmt-900 Truck Or Suv Using Oil

Is your GMT-900 using oil  

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2+ years later, after having the TSB performed, switching to Dexos-spec motor oil (not required on the 2009s), short-changing on the OLM-indicated oil change intervals, and deactivating AFM via a pcm tune, 


I can unequivocally state:





Edited by MaverickZ71
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