One other thing....

Just removed the oil filter, and I do have the larger rubber flapper under the perimeter holes as Paul223 showed us, so it isn't a oil filer draining the oil - or is it??. I did find something else. The O ring around the small neck in the center of the filter was missing from the filter I just removed. (and it isn't in the large center bolt). It was never on the filter. Would this be my problem with oil draining back into the crankcase?? Using one of my new factory filters as an example, here is a picture of the o-ring that I am talking about:



What does that o-ring do anyways??

As usual, thanks in advance,

NCDiesel