Thread: SYNTHETIC OIL ?
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Old 10-28-2009, 12:22 PM   #5
zen
 
Drives: 2011 CTS CPE & 2010 2LT/RS CGM
Join Date: Jun 2009
Location: Nevada
Posts: 337
The engiune in the CTS comes with Mobil 1, the same engine in the camaro (3.6 DI) comes with mineral (dino) oil. So I don't think it matters when or if you switch to synthetic.
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