I went back and read some of that thread from the Lucas link above. Pretty funny stuff. I'd wager that none of them that hate it, ever had or saw a Lucas oil caused engine failure. I read lots of opinions against oil additives and several that are for it, The ones for it, at least had supporting personal use of the products. I didn't read one post that said " I used it and blew up my BMW engine".

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David
Imola Red 2006 4.8is