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#4701776 - 03/21/18 11:11 AM Pennzoil Gold 0w20 question
MSTUEBER Offline


Registered: 05/19/17
Posts: 109
Loc: VA
Hope this question has not been asked before. My understanding is Pennzoil Gold is a blend of synthetic and conventional oil.
So is the 0w20 a mixture of 0w20 synthetic and 0w20 conventional? If so, why is 0w20 conventional oil not available.
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#4701796 - 03/21/18 11:23 AM Re: Pennzoil Gold 0w20 question [Re: MSTUEBER]
bubbatime Offline


Registered: 03/18/08
Posts: 5723
Loc: South Florida
Originally Posted By: MSTUEBER
why is 0w20 conventional oil not available.


Because its impossible to make a 0W20 oil using current technology with only conventional lubricants. Even semi-synthetic blends are far and few between, although we will probably see more of them as 0W20 is getting more prevalent.
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#4701805 - 03/21/18 11:30 AM Re: Pennzoil Gold 0w20 question [Re: bubbatime]
oil_film_movies Offline


Registered: 06/13/16
Posts: 2634
Loc: MN
Originally Posted By: bubbatime
Originally Posted By: MSTUEBER
why is 0w20 conventional oil not available.


Because its impossible to make a 0W20 oil using current technology with only conventional lubricants. Even semi-synthetic blends are far and few between, although we will probably see more of them as 0W20 is getting more prevalent.


When you formulate an oil like this, you start with base oil that will reach the "0w" cold visc requirements. This part can be done with conventional oil.
However, you have to then prop up the KV100 and HTHS to reach the "20" requirements, using VII chemicals. Still, this all can be done with conventional oil.
The last step is then passing all the high-temperature tests like NOACK, piston deposits, TEOST, etc. which really needs some GroupIII and/or GroupIV synthetics to pass that part.

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#4701813 - 03/21/18 11:34 AM Re: Pennzoil Gold 0w20 question [Re: MSTUEBER]
kschachn Offline


Registered: 12/26/05
Posts: 9533
Loc: Upper Midwest
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