Ok for the second oil change in a row I'm finding little particles of what seem like dirt and grime in my scotts stainless filter. At first I thought it might of been from running the oil a ride or two longer than usual. But I just got done changing it after one ride at around 4-5 hours on the ride and found more stuff on the outside of the filter. Nothing really big just small stuff but definately noticeable. I've been running Rotella 15-40w in there and change it often. Anyone else have this problem?