<VV> How MUCH Phosphorus and Zink?

[BobHelt at aol.com]

In a message dated 3/18/2010 1:35:04 P.M. US Mountain Standard Time,  
flash at vicsmba.com writes:

in fact,  if an oil lists 
1200 ZDDP how much Phosphorous and how much Zinc is  that?), 


Hi Flash,
The specification requirement is ONLY for phosphorous. It is supplied  by 
ZDDP which also happens to have some zinc. But zinc is not a specified  
requirement.
 
The requirement for GF-4 oils is a minimum amount of phos to be 0.06%  and 
a max of 0.08%. These two numbers translate to 600 ppm min and 800 ppm max.  
SM rated oils can have "any amount of phos but usually the max is 800 ppm.
Regards,
Bob Helt