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Old 06-17-2019, 06:42 PM   #11
Scooby Specialist
Member#: 193940
Join Date: Nov 2008
Location: Philly
2004 WRX STI Black
RalliSpec Shortblock


Yes, you have to be careful using UOA to identify a failure. Unless you tested your oil before and after it is hard to tell where the metal is coming from, and like Waddlz said, different oils can give you different UOA results.

120 psi in all 4 cyl is good news. Do a leak down test just to be sure.
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