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Update: I ran another analysis ~2500 miles after and here is what it showed. Nothing conclusive, but it didn't increase enough to indicate a real problem, and blackstone said 1ppm was basically within the margin of error, so it may just be noise...

I'm curious about this as well. Originally Posted By: SR1919 Thank you very much for sharing this VOA bismic1! For this specific oil (Mobil Delvac 1 ESP 5W-40) what is the likelihood of a NEGATIVE effect (beside to your wallet) by adding Liqui Moly Mos2? 1) High 2) Medium 3) Low I realize...

Thanks guys. Boomer, FYI, the ALH and before engines are fine with biodiesel, even at high blends. Oil dilution is not an issue with these older engines, and I have never seen a hint of it on my dipstick or my oil analyses. Interesting point about the tune, especially since I did run lots of...

Hi, I'd appreciate any insights into my last two oil analyses. Copper slightly elevated, and lead went up significantly this last time. Any idea what could be going on and what steps I should take to head it off? More info here: http://forums.tdiclub.com/showpost.php?p=4772383&postcount=3274