Lockup converter question

There is a transmission fluid additive you might think of trying. It's by a company called Lubegard. They make a product called instant shudder fix. Over the years, I advised customers to at least try this inexpensive product to see how it works in their car. All feedback I got was positive. I also sold a whole lot of their transmission additive Part number 61910 to transmission shops. In the years that I worked in the transmission parts supply industry, I can't say I was ever in a shop that didn't have Lubegard products on their shelves. Go to their website and read up on what their products do.