look buddy in my experience after reading all your posts I think you are paranoid. Your car has 50k on it...dont worry about drivin like a granny. Drive normal! DMD's are 100 bones, and then labor. It shouldnt cost more than 2 hrs of labor to do. Also replace your waterpump if you are so paranoid that is 50-75 bones plus labor. Should take less than 2 hrs as well. Normally I would say do it yourself, but after seeing some of the questions you have been asking I wont even suggest it. Other than that go with Mobil 1 oil, and snythetic fluids all around. Get a Drop in K &n if you want.
Also dont go blowin up on veteran CEG's because they tell you to search, you should. There is so much info in these archives MOST questions do not need to be asked. You act like this and no one will offer to answer your stupid questions.