[Aubrey N Bruneau]

Thanks guys...
yes, I guess it's the synthetic vs mineral again.
Is there an advantage to synthetic ?
I never found one.
I guess what !'m after is stability. I never have to worry about going rounds, and being unable to cool the engine down. PLENTY of time there ! So, typically, I CAN keep the engine cool for the pass. This is why I'm leaning towards a thinner viscosity... say a 10 / 30 or even 0 / 30 synthetic. However, this engine cost me a freaking FORTUNE, and I'm probably more concerned about it's survival, than that extra 4 HP !
So, I'd like my oil pressure to be kept around 65 for a run... but have enough stability to stay there, should I be in that environment where the temperature is allowed to get up there.
People tell me that only synthetic can do this ?