Blackstone testing of ancient oil cans.

[Rosetta]

Originally Posted By: MolaKule

Originally Posted By: A_Harman

Originally Posted By: MolaKule

You have to take into account the API SX rating. It wasn't until about SD that they started putting in more detergents and ZDDP. That's when they discovered that ZDDP was an ant-wear as well agent as as an anti-oxidant agent.

Would there have been other Phosphorous compounds in the old oils that would not have been part of ZDDP?

Yes, TCP, or tricresyl-phosphate would have been an AW additive component.

Yes, but, who put TCP in car gas Engine oils? Tell, I'll buy by buckets! Ashless AW are too expensive for car oils. TCP are used in Aircraft Oils, but cars? Never heard of that. The test were of car gas oils, not airplanes, I believe.

 

[TonyTriumph]

Thank you guys this is perfect.
But I was not able to see anything in the Blackstone news letters

 

[Simon_G]

But I was not able to see anything in the Blackstone news letters

It is too old and is no longer available on-line.

This should get you there:

Web Archive of April 2012 Blackstone Newsletter

 

[ZeeOSix]

No Moly use in the oil back in those old days.

 

[csandste]

Forgot about KMart branded oil. IIRC Kmart was America's biggest retailer for one quarter in the early nineties. Overtook Sears and was overtaken by Wally in a very short time. Thank you Eddie Lampert for sinking two retailers for the price of one.