Well, just got my second analysis done by AVlube. My iron and aluminum are up slightly, but the good news is that in spite of my dunderheaded failure to clean my Amsoil oily couch cushion for 34,000 miles, my silicon was down from 12 to 9!! I guess that gunk was making it a better filter? My results are in my Yahoo briefcase at the links below if anyone is interested. Iron concerns me a bit, but the reduction in lead and copper with tin still at 0 makes me feel good that I'm not eating any bearings. [img]tongue.gif[/img]