interesting conversation about draining oil

[kmoney_imp]

The sump on my Griso has internal ribs leaving pockets to trap particulates (I know this because I had to replace it once). Hot or cold, can't drain stuff that has settled in those low spots. Not sure if our CB has similar ribs; I would not be surprised.

If you change oil often I think this is a moot point. hrug:

I think this is probably the answer. The only modern engines I've ever seen with large deposits in the oil were either massively neglected, had design flaws (toyota 3.0, VW 1.8), or had other mechanical failures. The detergent packages are so good in modern oils that I don't think this is really a big problem.