email P&G and ask them, they should reply within a day or so, or at least last time I emailed them they did. I had a question about optical brighteners so I contacted them.
I called them and asked about Cascade rinse aid. They said that their rinse aid was introduced in 2008. I told them that I have been using their rinse aid since 2004. I'm just confused about when Cascade came out with their first rinse aid. Somebody clear things up.