The manual for my '06 Duramax HO says to change oil whenever the driver information center says 'change oil soon'.  In the manual there is no mention of any mileage level in regard to oil changes.

Ron
 my '05 Colorado 5 Cyl says change oil every 3k miles

 Eugene wrote:

 Ron Recer wrote:

   
   I know that the oil change message that shows up on the drivers
information panel is based on a lot of variable data, such as time since
last reset, engine temperatures, rpm's, miles driven at sustained speeds,
etc, etc. But I was wondering at what miles people generally see the
change oil message? I have a 2006 Chevy 4x4 with the 5.3 liter aluminum
motor. I changed the oil and filter initially at 2,500 miles and at that
time reset the oil change message, it was not on at that time. I now have
around 5,500 miles and was just curious as to when it may come on. This
is my first vehicle with the feature so I'm just a little curious about
it and don't want to put to much faith in it just yet. I may just stick
to every 3,000 miles like I have in the past.

Thanks,
Brian
     You probably won't see the 'change oil soon' message until somewhere
between
7,500 and 10,000 miles.  You can change it every 3,000 miles if you want,
the oil change places/suppliers will love you for it!

Ron
   I typically change every 6000 miles and grease and rotate the tires at the
same time and reset the counter and have never had the change message come
up yet.  I've been busy the last couple months and haven't gotten around to
changing it yet and am nearing 10k on this oil and the message hasn't come
on yet.  I'm going to run to sams club next weekend and get another case of
mobile 1 and change it then.

 

My shampoo bottle says "lather hair, rinse, repeat". People that change
every 3k are nuts. Oil companies have brain washed us all.