Hi, I just had a oil analysis done on my truck. Its '04 5.9 Cummins with 66,000miles on it. Running Amsoil with 12,000 miles since the last change, the report came back showing a high amount of copper in the oil 615ppm, where the average is normally less than 10ppm. Any ideas what this high amount of copper in the oil could be?

 

http://www.dieselplace.com/forum/sho...d.php?t=307071

 

Oh wow, interesting read. Glad to know thats what it is, has made me feel much bettter.