Cool Ilko,
When you get your results back would you be willing to post them in the UOA thread I started:
http://forums.rennlist.com/rennforum...s-results.html
It would be interesting to compare your Brad Penn results with the Castrol results you posted about 8 months ago.
I'll do the same on my next oil change and we'll see how the shell oil is doing.
Hope your results come back clean,
James