API oil nomenclature

[Helt]

Hi to the Forum.
I'm new and just registered, so I'm sorry if this has been covered before (if so, please direct me to it).
Lets just focus on the amount of Phosphorus in the various oils for example. SJ=1000ppm, SL=1000ppm and SH=1200ppm.

So of a container is listed as meeting SL/SJ/SH, what is the spec'd amount of Phos. Similarily and oil listed as meeting CJ-4 and SL (CJ-4/SL) has what amount of phos? 1200ppm or 1000? Or something different?
Thanks in advance.
Regards,
Bob Helt

 

[StevieC]

to BITOG!

 

[Pablo]

This is going to sound like a cheeseball answer, but it depends on the viscosity. P in 30's and under were controlled tighter than 40 and above. CJ-4 and SL are also controlled differently.

Best is to read this:

API 1509, 16th Edition (April 2007) - Now with Addendum I, March 2008

Here: http://www.api.org/certifications/engineoil/pubs/index.cfm