So I'm do some leisurely reading in a tribology book on the web yesterday - it states that Molybdenum breaks down fairly easily when reacting with water. The byproducts are not corrosive - but it does decompose. Meanwhile, Schaeffers relies heavily on Moly for AW and AF, and Sch. is known for good UOAs at reasonably extended OCIs. Is there concern in using it in a long drain app that could be considered severe (high humidity, lots of engine starts thru the day, perhaps monthly full burn-offs) ?