[Spridgets] Hyper Lube

David Lieb 72spridget at gmail.com
Mon Jul 20 18:56:19 MDT 2009


1600ppm would be 0.16%
Did I beat the rocket scientist?
David L


2009/7/20 Billy Zoom <billyzoom at billyzoom.com>:
> As I understand it, original ZDDP level was 1600ppm, which was lowered to
> 800ppm in 1987, and down to 400ppm recently. I don't know what means as a
> percentage. Maybe some rocket scientist will chime in.


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