Quote:
Originally Posted by PolynesianPowerhouse
New fluid usually has enough detergents in it to clean any debris or contamination off the clutches for full engagement.
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There is a lot of disinformation on this topic.
The problem with the original fluid is that it was hygroscopic, meaning it attracted water. This caused uneven engagement of clutch surfaces, with adequately lubricated areas right next to essentially unlubricated areas.
You end up with two faces of sandpaper rather than two smooth surfaces. All the new fluid in the world isn't going to fix that.
https://gm-techlink.com/?p=11127