As I suspected, ZDDP is just a cheaper alternative to molybdenum disulfide .
http://www.platinumresearch.com/media/promedia_mar_08.pdf
"We are all aware that the excellent
film-forming properties of ZDDPs are the
key to its strong antiwear characteristics,
but it can also lead to poisoning emissions
catalysts, which is of concern to the automotive
industry.
Another additive that has been used to
provide extreme pressure properties is
molybdenum disulfide. This compound is
used as a solid lubricant and can be dispersed
into oil for use in industrial lubricant
applications such as grease. The rapidly rising
cost of molybdenum disulfide is of concern
and is prompting the need for evaluating
alternative technologies that exhibit
better cost performance."
So, go here http://www.rosemill.com/product.asp?productid=258465
order a pound of the 1.5um stuff and add a teaspoon every other oil change.
Should last you the rest of your life...
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