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I sent in some oil to Blackstone for an analysis. I've attached the report for your curiosity. I'm currently @ 81k and it seems relativity "normal" for my mods and how hard I drive it. I was using Mobil 1 5w30 Extended Performance and the OEM filter but after that oil change, I switched to Pennzoil Platinum 5w20. The 5w20 seems to be giving me slightly better mpg and the valves stopped clattering during startup.

Guess this engine will last over the 100k warranty *knock on wood ;)
 

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I have done a few UOA,s too on my 2009 Sonata 2.4.
PP 5W20 was good..low wear number with a quite engine.

We should start a" Sticky" here to post oil report and start tracking UOA reports for the NF Sonata's.
 

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Did Mobil 0w-20 and Penn Plat 5w-20 early on for my 2006, numbers were great at 5k miles.
 
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