Oil on the outside of tappet pan

[ThunderChicken]

I was doing my weekly oil check and I notice I have oil on the outside of my right tappet cover (passenger side). I am about a quart low and between oil changes. The oil is dry but there is a considerable amount on the cover. Any ideas where the oil could be coming from?
The left side is as clean as a whistle. I have put about 1650 miles on it since the last oil change.

[sveltax]

I seem to get a little dirt/oil residue around the filler cap. It does seem to spread to the valve cover. No visible leak just dust covered residue.

[ThunderChicken]

That could be my problem. Living here in Arkansas and on a dirt road, I do get a blanket of dust everytime someone passes by.

I will have it checked out next week. I got to take her to a ZuZu dealer. she's about out of the factory warranty. I am going to have them check everything out.

Thinking seriously about getting one of those extended warranty programs. My bank endorses one and it sounds pretty good.
I figure if it wasn't any good they wouldn't be passes out brochures.

[xdfarrx]

I had a similiar problem. The gasket needed to be replaced on the inside.