Just saw oil test today

Royal Purple is best oil but most exxy oil, and there was virtually NO wear on teh test bearing - 10W-40 for track is good. I'm trying it in April, will let you guys know how it is.

Suprisingly, Motul, pennzoil and Mobil 1 (There were more that should have stood out, don't member which ones) are all quite shitty - even the higher grade oils.

Castol Edge is moderate. Good protection, and price isn't too bad. I use on a regular basis, and has always been kind to me. Have only heard good things from ISMR customers and others.

Valvoline Duralex, and Penrite takes the cake. I have used Valvoline before, thinking it would blow my engine... but it was great. I used 10W-50(Or 40 can't member), lost a bit of power, as it's thick, but was told it had great protection. Seems I was told right according to the tests.
Penrite oil was nearly as good as the Valvoline stuff.