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Old 06-30-2013, 04:09 PM   #100
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Member#: 316364
Join Date: Apr 2012
Chapter/Region: MAIC
2012 WRX


Originally Posted by bluesubie View Post
I believe he was wondering if perhaps there was a small amount of a different oil in the sample bottle because the oil sheared so much. I don't think I've ever seen any Euro 5W-30 shear to a 20 grade. The viscosity in the uoa that I linked above is fairly normal, and that was from a Stage I STI with 6,854 miles on the oil.

The sample bottle was clean, BS sends fresh ones for each sample. None of the oil I've sent in was mixed with other oils. It's possible that due to my poor sampling of the second UOA posted in post #69 the readings were off, but the most recent sample I took was done correctly and not mixed with anything.
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