What are you using? Here are some cheap options:I thought of that but at $10 a qt.... <img src="http://www.chevymalibuforum.com/forums/images/ChevyMalibuForum_2016/smilies/tango_face_surprise.png" border="0" alt="" title="EEK! Surprise" class="inlineimg" /> <img src="http://www.chevymalibuforum.com/forums/images/smilies/frown.gif" border="0" alt="" title="Frown" class="inlineimg" />Honestly I think you should change it again. You got about half of it the first time. Now after you dump and add 4.5 quarts again, it will be about 75% new. See then if it stays better for longer, and then keep dumping and adding every 10k.
When this is back in stock:
A lot of people use this, as did I, but I am going with the pennzoil next and then probably valvoline or supertech dex vi
Valvoline™️ MaxLife™️ Multi-Vehicle Automatic Transmission Fluid - 1 Gallon