bogus wrote:
I haven't had any issues with mine... and the aspect I like is the reuse bit... not throwing one away every year. It's a bonus.

I don't have a MAF, so the oiling doesn't matter. Once the extra oil blows off, clean the MAF and it should be ok.

One other thing, Cummins does NOT recommend using K&N air filters on their engines; the filters don't filter down enough.