STLE Paper on low temperature performance

[Shannow]

of multigrade (10W30) oils

Discussion on why the different tests have different cooling rates. Rapid cooling to the same temperature allows less gelling than a long, slow cool...

To prove the possibility, they made a bench top lube with a basestock pour point of +25F for their testing.

Interesting comments around mid paper on VII and PPDs, their behaviour and interaction...in short, statements that appear "self evident" fall down when VIIs and PPDs interact.

 

[JAG]

Very cool. Keep spreading the word, especially since some have incorrectly said that it is not true that some additives interact negatively.

 

[MolaKule]

Keep in mind this series of tests was done with mineral base oils with API SF/CC PI package formulations.

The authors are correct in that the formulator has to choose the correct test or set of tests to determine formulated characteristics.