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I don't believe that you've updated this site since 2003 as the post contains references to '2003' all over it...but:

Are you going to enter the 'With ZDDP' v 'Without ZDDP' oils?

As the newest engines use roller-lifter technology and many still-on-the-road vehicles use flat lifter/tappets cams, what do you see as a problem for wear characteristics and performance with the new legislated 'Eco-Friendly' oils?