Analysis of Chinese over the counter Oils

[Shannow]

http://www.savantgroup.com/media/ChinaLubeConf-2007-PaperFinal-1.pdf

Less than 70% of oils purchased and tested passed the cold temperature "W" rating that they were labelled as.

But...the European labels were better, but not hugely so in the 10W and 15W ranges.

US was over 95% compliant.

 

[BrocLuno]

Glad I live in temperate climes

 

[CT8]

Originally Posted By: BrocLuno
Glad I live in temperate climes

The government will protect you !

 

[Rand]

That paper is almost 10 years old, but interesting.

 

[Ducked]

Originally Posted By: Shannow
http://www.savantgroup.com/media/ChinaLubeConf-2007-PaperFinal-1.pdf

Less than 70% of oils purchased and tested passed the cold temperature "W" rating that they were labelled as.

But...the European labels were better, but not hugely so in the 10W and 15W ranges.

US was over 95% compliant.


I didn't read it quite like that, though I may have mis-read it.

It didn't seem that the MRV TP1 and Gelation Indexes mentioned were part of the "W" rating, since they say of the Chinese oils:-

"Since all of these oils presumably would meet low-temperature pumpability requirements indicated by the SAE W-grade classification, it was of interest and concern to determine how many of these oils would actually pass TP-1 requirements as well as meet the pumpability performance criterion of the Gelation Index"

That seems to make an explicit distinction between W rating and these (more advanced?) criteria.

They mention a number of standards (including a Chinese one) which incorporate TP-1 and Gelation Index, but don't seem to say how these standards compare with the failure criteria they applied.

Since they don't seem to reference these criteria, they may be their own.

 

[Garak]

Those criteria do seem to be their own, at least according to the last part of the paper. This is an interesting paper. Doug was mentioning some time ago that there was some concern in Europe over oil not maintaining its winter rating over a long OCI, and that it might have to be addressed.

 

[Ducked]

Originally Posted By: Garak
Those criteria do seem to be their own, at least according to the last part of the paper. This is an interesting paper. Doug was mentioning some time ago that there was some concern in Europe over oil not maintaining its winter rating over a long OCI, and that it might have to be addressed.


That'd perhaps imply a relationship between oxidative polymerisation and gelation, which doesn't seem terribly surprising, though not inevitable.

When I saw the title I wondered if "Chinese" included "Taiwanese", but I'd guess not.

In any case, asteroid impacts aside, these sorts of temperatures for these sorts of durations aren't ever going to be seen here, even on the highest mountain passes.

 

[FCD]

i would not trust a chinese made oil for my doorhinges

 

[Toaster_Jer]

+1 Ha ha

 

[mjoekingz28]

Are you saying they (the Chinese) cannot blend good oil, or is there no good crude within the country?

 

[Shannow]

Originally Posted By: Garak
Those criteria do seem to be their own, at least according to the last part of the paper. This is an interesting paper. Doug was mentioning some time ago that there was some concern in Europe over oil not maintaining its winter rating over a long OCI, and that it might have to be addressed.


More on the type of testing here
https://bobistheoilguy.com/forums/ubbthreads.php/topics/4121594/Re:_"Waxy"_o#Post4121594


Here's a paper diesel oils.

http://www.savantgroup.com/media/SAE-2006-01-3352-Low-Temp-Rheology-of-soot-laden-oils-using-SBT.pdf

Also has the Sioux Falls incident explained.

There's another paper that discusses used PCMO, but that's 404ed on the savant site.

 

[Garak]

Thanks for that, Shannow.

 

[Hoot_r]

Originally Posted By: mjoekingz28
Are you saying they (the Chinese) cannot blend good oil, or is there no good crude within the country?


Yes.

 

[Shannow]

Originally Posted By: mjoekingz28
Are you saying they (the Chinese) cannot blend good oil, or is there no good crude within the country?


They can do and achieve whatever they set their mind to...good quality and exceptional QC, through just skirting the required limits, through to completely ignoring anything that resembles a specification.

I had a big order out for 150 miles of 90:10 CuNi tubing, and their costs were so low to produce that it was possible to station a Q.A. team for a quarter to oversee to production and testing...got them made in SK eventually (after overcoming some of the corruption issues in THAT country).

 

[camrydriver111]

Originally Posted By: Hoot_r
Originally Posted By: mjoekingz28
Are you saying they (the Chinese) cannot blend good oil, or is there no good crude within the country?


Yes.


Amazing how you can get that out of that paper.