I spoke with one of the techs just a few min ago and there is a bit of additive in the SP but not as much as you would find in the MT 90 for daily driven applications. The SP is meant for racing applications but seriously, to some on here that's also you normal race application. lol
If your worried about it toss in MT 90 if you want redline still. If you want the shit that's suppose to help under some serious play time. Stick to the SP.
Also all the info you can want is at
www.redlineoil.com
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