I would ask the dealer about synthetic in the 4.7 tranny. That is quite a
different tranny from the norm, and synthetic might not be recommended. One
of the differences is that it doesn't use clutch plates and such, instead it
regulates oil pressure, and changes the pressure to what is required to push
on the plates. This is not the whole technical description, just a brief
simplified description. I also read the article a while ago. But you can see
why synthetic might cause a problem..
Josh
http://dakota.jumpautos.com
<sedwards@SUNGARDRS.COM> wrote in message
news:OFCC675913.AC0C3F59-ON852569F3.004B4D63@SUNGARDRS.COM...
>
> I am approaching 15k miles on my 00 QC 4.7 and I want to change the
> transmission fluid. Question: if I go to synthetic do I need to have the
> entire system pumped free of the old transmission fluid.
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:59:15 EDT