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Post your UOA, (used oil analysis) here


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  • 2 months later...
4 hours ago, Leo Opalewski said:

16k OCI1786877552_Screenshot_20230117_174426_AdobeAcrobat.thumb.jpg.d020dadbde5c5d95da886695b9942b23.jpg

Thanks for sharing. What 5w30 oil brand, what year of Sierra? What gasoline and octane?  You using any fuel additives?
1289 Mg super high additive level. Using 1 qt in 8000  avg miles quite good for modern GM. 
Fuels dilution is at least 1%. Wish Bklabs would join modern world of fuel  dilution readings using gas chromatography. 

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  • 2 weeks later...

Here is another UOA on my 2019 Silverado 6.2.  This is the lowest fuels dilution to date as well as water.  But nitration is still too high.  Everything else is good.  I have been mixing E85 with 93 for this run at a 40/60 mix.  I also drive in L9 to keep DFM from activating.  Most of my driving is in town so no real need for all ten gears.

 

 

2019SilveradoJan2023.thumb.jpg.73888cc192e7725e787d5f4ecc437919.jpg

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  • 3 weeks later...
  • 2 weeks later...
1 minute ago, Grumpy Bear said:

Looking back over this thread I see a lot of Ecotec3 5.3/6.2 guys using 5W30 instead of 0W20. 

:rolleyes:

Like girlfriends thicker is better.......🤣

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14 minutes ago, customboss said:

Like girlfriends thicker is better.......🤣

 

I also noted that in general the 5W30 motors have better wear numbers.

Except Nick, naturally. His 6.2 seems wear impervious. :D

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