I heard and experienced the above in a GS-R. My buddy is running it in his car and swears that it's running GREAT! I took it for a spin and she pulls WELL, especially in VTEC range.

I've been running 5-30 mobil one synthetic and I'm quite content with it's performance. Would a 0w50 weight in our motors cause harm in the short term and or long? How would it benefit? Thanks!