UOA for the Evo with regular Red Line 5w30. Ton of hard usage ont he car, 3-4 track days, a few autocrosses, etc. The regular RL 5w30 seems to be showing a little weakness here again with the copper number. I may switch back to the race oil, especially given how well it did and the fact that it had enough TBN in it to last 3k miles or so, which is about what my usage is. Probably 1qt of 40wt racing oil, and the rest with 30wt racing oil.