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#1
07-11-2004, 02:07 AM
Hummer Authority
Join Date: Oct 2003
Posts: 1,118
Got a service (been doing my own) reminder letter from the dealership (Hummer of Columbus) and noticed that they would "Add KREX Graphite Additive" as part of the service.
Anyone had this added during a oil change, what is your thoughts on it, snake oil or something to look into?
Found the site of the manufacturer http://www.krexinc.com/
P.S. Did do a search here 
and didn't see anything on KREX.
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