Question about oil filter...

[soup1207]

Hi,

I have a question about oil filter. When we change the oil, the oil is so dirty, I think those are the wear out from the engine?

Does it mean the oil filter loses it function (too much dirt),so the oil drained is dirty?

I currently installed Mobil1 extended performance oil and filter. The filter states it can protect up to 15k miles. I wonder if I can change in filter but not drain the oil out?

Again, thanks you all who cleared my frustration in my last post.

Thanks,

Ricky
Ricky