Is this an accurate test on motor oil

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Originally Posted by OVERKILL
Originally Posted by 4WD
We already have industries, institutions, and agencies that have chemists, engineers, and chemical engineers …
And advanced labs with test protocols … and they hold both chemical and formula patents
They also work hand and hand with equipment OEM's etc … Must conduct Proof of Performance tests to get the approval.

This other stuff is entertaining …


This.

People seem to get bizarrely rev'd up when somebody torpedoes whatever faith they've got in amateur testing and this is oft followed by calls for those that have made the statement to back it with their "own testing" which completely misses the point. There are, as you indicated, standardized tests. Ones that are far more robust, repeatable and reliable than some series of home brewed bench tests. And with these standardized protocols come actual margin of error figures.

The reason Pour Point for example isn't used anymore is because it isn't reliable. You'd have lubricants pass the rapid cooling of the Pour Point test protocol and the oil would gel and fail to pump in actual ambient conditions that involved a different rate of cooling. The behaviours of the waxes, PPD's and VII's were not adequately sussed out via a test that simply used gravity and a freezer, which is why CCS and MRV testing were implemented to get an actual benchmark of what mattered:
A) The impact that the oil's viscosity had on the ability for the engine to crank
B) The ability for the oil to get picked up and pumped

This is wholly represented in the Winter rating of the lubricant.


Always worth watching to understand what cold oil flow is all about. Timely too since winder is closing in.
 
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