[thekurgan]

With respect to running thinner oil for the purpose of saving/reducing wear on the main and rod bearings, what will the result be with respect to the ring end gap and piston to cylinder wall tolerances? It looks like our oil pump is more than capable of maintaining oil pressure, enough for lubrication and vanos activation, so moving to a 40 weight oil may just be a matter of burning more oil, which I'd more than live with topping off now and then.

Thanks again for the info; I've barely had time to look at each post, which I'll do today sometime.