As far as I have been able to ascertain, no. My own personal use of Tufoil has been positive. I have never torn my motors down, but there are plenty of users who have, and they report unusually clean motors, even with dino oil. There have been many flavors of moly containing products over the years, one of the more recent being Royal Purple synthetic oil, which is quite popular in drag racing circles. GM coats their compression rings with moly for its break-in characteristics. Not being a chemist, I know that molybdenum can come in a lot of different forms. My speculation on your experience with heat treating is that a reaction occurred between that particular compound and the treating atmosphere, or some temperature threshold was crossed that would not be encountered under normal circumstances.rschumacherfan1 said:I'm just wondering if there are any long-term negative effects?
Yeah, saw that too. I think I'll avoid the oil additive, but their fuel additive is wonderful. Never heard a bad word about it.speed_demon_fre said:
Moly is in almost every motor oil on the market now.Being in the plating industry, putting any molybdenum in my engine scares me a little.