1) The copper in UOA's using Redline is not wear in the conventional sense....It's a plating effect and is the reason for the very low iron wear in RL analyses.
2) The initial spike in Pb is due to the interaction of the RL add pack and the softer bearing materials. This stabilizes after 2-3 changes
3) The key to Redline is not that it's shear stable, it's that the stuff just doesn't thicken. A very high resistance to oxidation means excellent engine cleaninless, even with extended drain intervals. Maintaining engine cleaninless over 100's of thousands of miles is MUCH more important that marginal differences in wear rates.
4) Valvetrain and piston ring/cylinder wear with Redline just beats Mobil 1 hands down ...
5) If I weren't using Amsoil, I'd run Redline or Delvac 1, based on the UOA's I've seen to date.
Tooslick
[ November 22, 2003, 09:17 PM: Message edited by: TooSlick ]