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Old Sep 6, 2018 | 01:06 PM
  #1  
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Oil viscosity

Came across this article on oil, just thought it was an interesting read, just passing it along:

https://www.machinerylubrication.com...518/motor-oils
 
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Old Sep 6, 2018 | 01:56 PM
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That IS interesting . Thanks
 
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Old Sep 7, 2018 | 08:59 AM
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I love this stuff. I've been using 5W-30 in all my vehicles. Not sure I fully understand the plastic molecules tangling and untangling will have to read that a couple times for it to sink in
 
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Old Sep 7, 2018 | 09:43 AM
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I have only been using Motorcraft dino oil 10w30 and contemplating on going to synthetic 5w40 shown below.



 
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Old Sep 7, 2018 | 11:26 AM
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I've only used 5w-20 for my 2015 6.2 because that is what is specified but then Ford changed the spec to 5w-30 shortly after.
as far as I know we have never gotten an official explanation why. Most folks use the 5w-30. It probably wouldn't affect me as I live in tropical southeast Texas.
 
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Old Sep 7, 2018 | 08:13 PM
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Came across this article tonight, a bit lengthy, but I had found it extremely interesting, informative and educational, just passing it along/sharing.

https://www.minimania.com/Motor_Oils..._Misunderstood
 
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Old Sep 8, 2018 | 04:19 PM
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I run 15w40 in my 6.4 3 seasons out of the year cuase I doubt like the sound of it on 5w40

i run 10w40 during the winter


as much as I like the theory of why 5w40 can be used all year....in practice... the valve train chatter under 5w40 is just too annoying for me.

 
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