Quote:
Originally Posted by X25
My post regarding this on Corvette Forum is below.
Long story short, GM does not recommend this for street, and you're supposed to replace it back (with 5W-30) once you're done with the track day. If it did not have side effects and has better protection, our cars would come pre-filled with it.
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+1. In this instance, I got to roll with the guys with the mechanical engineering degrees who built the machine. I mean, if they don't know for sure, who does?