Originally Posted by Badazzgta89
Dex is fine as long as you change it if you don't it will eat gaskets as it gets acitic after time.
Is there a bleeder on the T-stat housing?
No it won't eat gaskets. When you've seen as many as say Dan and I have, you start to get a clearer picture and ask more questions. The plastic gaskets have relief notches and it'* those areas that collapse. Then the seal is compromised. The issues are more heat related than coolant related. Dex will sludge/turn back to OAT with air and it does turn brown when mixed with the old green coolant.
OP: it sounds like you may want to perform another flush and ensure you flush the motor well. You may have gotten some mixing.