Hello. Well, I feel a bit guilty so far, taking info from the people out here who are not only knowledgeable but willing to help, instead of giving back, so here go a couple more questions. Do we recommend use of semi-synthetic ATF in these cars? Anybody have any experience with that? Also, how often should the ATF be drained and replaced? Any caveats on that job? How about replacing the little screen and the usual gaskets? When or under what symptoms should this be done? In the owner's manual it appears there is an obstacle to getting the pan down that might complicate things. Car in question is a seemingly well-kept one owner 940 but with enough blanks in the service history that I am trying to establish one, but avoiding doing things unnecessarily. Thanks for the help. Have a good one.