[arthrodriver]

jdraup, With regard to reliability I was referring to engineering type studies where (I think) accelerated usage and stress is used to predict MTBF etc. Help please from engineering types out there. My point was that no aftermarket supplier can afford to perform such "elegant" studies and so must rely on feedback from owners while holding breath.

Edit: Just a thought...Do oil analyses which detect fine traces offer anything sooner to the Boxter owner compared to the filter dissection? The oil analysis I did (another car) came back with a statement something like..." your oil shows normal characteristics of the engine class xxx."