Did a little more searching: Conclusion is you don't need to change your oil right after adding Techron BUT don't do more than 5 Techron adds to the same oil.
Here's two threads (one with a response from Chevron, one from a Bob is The Oil Guy thread)
http://www.e90post.com/forums/showthread.php?t=492475
http://www.bobistheoilguy.com/forums...Number=2082415