Quote
Which of these three base oils has the lowest % of volativity?
Group III, 4.5 cSt@100C
Polyol Ester, 4.3 cSt@100C
PAO 5, 5.1 cSt@100C
This question is NOT open to Chemists, Formulators, or Engineering Disciplines.
According to ASTM D5800 %, here is the way they would stack up in terms of
average percentage volativity:
Group III, 4.5 cSt@100C - 12.8%
Polyol Ester, 4.3 cSt@100C - 2.65%
PAO 5, 5.1 cSt@100C - 5.6%
So indeed, the polyol ester has the lowest volativity in spite of the fact it had the lowest 100C viscosity.
In addition, the POE had the lowest deposits in the TEOST MHT-4 tests for a 0W20 PCMO with 10% POE.
The addition of POE's to the base oil mix assists in deposit control because of their oxidative stability and detergency.
Overkill had the first correct answer, so he receives the virtual BITOG Mug with the embossed
emblem and a quart of XWXX full synthetic oil.
Originally Posted by CT8
Mola, is this another trick question? The ester would have the least.NOACK and volatility.
There are no trick questions. One is expected to do some research and come up with an answer.
