HPL PCMO 5W-40 Base VOA

[MVAR]

VOA for the base HPL PCMO 5W/40

 

[fantastic]

Thanks! This is helpful.

 

[loneryder]

What is all the sulfur from?

 

[MVAR]

What is all the sulfur from?

Esters.

 

[MVAR]

What is all the sulfur from?

Sulfur containing compounds in lubricant Additives:

ZDDP (an ester of Zn[(S2P(OR)2]2); Zinc, Sulfur, and phosphorus.
Spikes, H. "The History and Mechanisms of ZDDP". Tribology Letters. 17 (3): 469–489, (2004-10-01).
Calcium and Magnesium Sulfonates
Molybdenum Dithiocarbamate or MoDTC (recall that a MoDTC compound formula is C4H8MoN4S8), or 4 carbon atoms, 8 hydrogen atoms, one or more moly atoms, 4 nitrogen atoms, and 8 sulfur atoms.

So any DTC compound is on the order of C4H8XxN4S8, where Xx is the metallic element containing one or more of the metallic atoms to create this organo-metallic compound.

From @MolaKule in the HPL PCMO 5/30 thread.

 

[MVAR]

@himemsys can this one be added to the VOA database?

 

[himemsys]

@himemsys can this one be added to the VOA database?

I'm on it! Thanks for posting @MVAR !

 

[TiGeo]

Posted one of these a while ago. 15 Si and 6 Al need to be factored into the UOAs.

Thread 'HPL 5W40 testing complete (for now), all data etc. provided here' https://bobistheoilguy.com/forums/t...te-for-now-all-data-etc-provided-here.360542/