quote:Don't worry. Unless the Factory specifically stated to leave in the oil, then I'd have questions. Moly has a lower coefficient of friction, retards galling,seizure and metal to metal contact, and perhaps with tighter engines this is mor needed today. Possible to help with higher heat or whatever the engine is going through in break in, My concern was that it helps retard wear, and that's what you want IMO in a new engine, some control of wear to the point it is "BROKE-IN". During break-in, Moly helps the metal have a minimum of "chopping off" of any asperities. All metal is rough when looked up close under the microscope and moly will fill in these areas (see Bob's topics under Moly on the main board) and thus must provide initial lubrication where other oils must fail on new engines. This "EXTRA" lubrication protection IMO protect or mean the difference of lots of miles, maybe even a 100K or so because the first few hundred miles of the engine, all these Peaks and Valleys are being chopped up and that creates more metal which creates more wear, and so on. Moly bonds to almost anything under pressure, but likes to stick to Steel and I think some yellow metals better than say Aluminum, this would therefore reduce the amount of "Chopped" pieces of metal that happen when breaking in. My main concern is my Tacoma took forever to break-in and I didn't have any special Moly Additive that I know about in there... maybe I did and that's why it took for-ever to break -in.
Originally posted by mulepacker: I originally was going to do a 100-500-1000 oil change on the car,but after reading a few threads regarding MOLY in new car break-in oil, I'm confused!