Engine Oil for the S2000

[Hasbeen]

I agree completely garett, that's why I said it was unsuitable for anything high revving.

I have a highly tuned, [300+ BHP] TR8, with all forged gear in one of the last 4.6L Rover V8. These are very dirty engines, with a habit of filling themselves up with carbon. Rocker covers can be caked with the stuff in just 15,000Km.
I use Penrite HPR 10 diesel in it, a highly detergent 5W30 synthetic. This would be more suitable for the Honda, although I'm using Honda oil at present.