I currently have my shifter off... it sems like a good time to add some friction modifier(XL-7). I am currently running Amsoil ATF. When looking where the shifter goes there looks to be a couple of oz of fluid in there.I assume this would be normal? Anyhow, would there be a problem in pouring a couple of oz of XL-7 through the shifter(I am concerned about it "mixing" in properly, and over-filling the trans). I appreciate any feedback... later