After doing a search on treating rubber seals I went to the local BMW dealer and purchased a tube of Gummi-Pflege. This stuff is thick like vaseline and comes in a tooth paste like tube with a foam applicator attatched. Can anybody tell me what is in this stuff, the people at the dealership didn't know. I am wondering if it contains silicone and if so is it harmful for my seals? BMW sells this stuff for Bimmers but I drive a Celica GTS, are the German seals the same as the Asian? Thanks for any responses.