You can't say for sure without having it analyzed. 5-6000 miles on the oil, I wouldn't be too concerned.
and with that i will be buying a mag oil drain plug lol:bigthumbsupI agree you cannot tell anything from the color - old pros can tell a lot by the smell, and by how the oil looks on blotter paper. This is also true for ATF's by the way.
But UOA's are the only scientifically means to determine how your engine, oil, and filter are performing. Keep in mind that a good UOA sequenxe involves at least 3 analyses done continuously (that is, without skipping an oil change analysis). A cheap tool that can alert of dramatic internal probs is a magnetic oil drain plug. Large shards can alert of serious issues requiring further research, while fine dust-like sludge is normal.
True. We aint driving model A's any longer. Hense the appearance of "detergent" oil lol.Like Steve said. If the oil is not dirty, it is not suspending the contaminants for the filter to clean. If your oil in not dirty, then the contaminants are staying in your engine somewhere, so dirty is good.