I just bought some parts for my mini, including some stuff for a service, but looked through the history and found that it had fresh oil and filters put in earlier in the year (about 2000 miles ago), so it’s probably still good at least for a few months. My question to you is this; should I go ahead and put the all the new pieces in, since I have them and need to do some other work on it anyway, or should I leave them be and do a service later on, rather than wasting what’s already in there?