2006 Gmc duramax oil capacity Read Also: 2006 Gmc 2500hd duramax towing capacity 2006 Gmc sierra 2500hd duramax towing capacity 2003 Gmc duramax oil capacity 2008 Gmc duramax oil capacity 05 Gmc duramax oil capacity 2003 Gmc duramax diesel oil capacity