I have start noise/click/knock or whatever it is and only at start up with my 93 GS300. Purchased at 63k and now have 78k. Paid for dealer checkover but of course they didn't hear it and said all is well. The best car I have ever owned. Always use a Toyota filter with 10w 30 oil since 5w 30 sounded the same. Tried STP oil treatment but nothing changed. Joined tonight just to add this for what it is worth.