Best oil for 2012 gt500

[heatsoaked12]

Ordered a Blackstone kit today and put in RP 5w-40, which I don't see on the chart. Taking it to the track in about a month, so I will have about 2 months of DD miles and a 4x20min track sessions. I'll report back in Dec.

Well directly after I put this oil in my car with a ford racing oil filter, it was clearly quieter. Im curious about your results as well.
Note: with the royal purple 10w40 it sounded the same as stock with the factory fill (small rod knocking sound from passenger side)

 

[6-Speed]

Redline doesn't show good lab results either, it doesn't shear at all which creates constantly high oil presuure plus it has abnormally high counts on another I can't remember, UB will chime in I'm sure.

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