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Hi all! Well I had a oil analysis done on the wifes Explorer and I am pleased with the results however copper seems to be the only thing reading high. What would cause this? Is the engine still breaking in? Valve guides? I used Amsoil 7500 5w-20 Here are the numbers. Alum 2 Chrom 0 Iron 9...

Hi, This is my first post to the forum and I am hoping to solve a problem with my oil analysis. I seem to have a high lead content (sould be 2ppm)in the past two oil samples however the silicon levels are fine along with iron. I drive this vehical about three to four times a week about 70 miles...