Well, today I did a quick Engine Flush/Drain/Refill as well as fitted a new Filter - in fact I never just change the Oil, I alway replace the old filter with new. (And generally Flush with Wynns Engine Flush).
I was quite impressed that the Oil coming out was still reasionably translucent as it was pouring out, and still had a nice smooth feel.
I've fitted a Bosch (0 986 452 036) which is slightly longer than the one normally supplied and has a wider Seal Ring - this is the one recommended by Bosch for the V6 anyway.
This is the one you will get normally but is for the S2000.
As you will see the V6 one is longer.
Anyway, I refilled using the Gulf 5W40 Synthetic Oil. Definitely a different colour to the Petronas Oil. We'll see.
I also fitted the new Baffles, or "DB-Killers" and in my mind look much better! And as far as sound they don't sound that much noisier to be honest. It's not like the old set were whisper quiet anyway. (Sorry the car hasn't been washed for a good few weeks!).
This was before, I know, not a direct comparison sorry.
Thanks.... Ciao.