06 Durango Hemi 5.7, 4X4, 195000 miles. I was doing some maintenance and checked the air filter. I noticed there was a little oil on the filter right under where the hose plugs in on the top of the housing. This hose hooks to the oil fill area. Its not a lot of oil, maybe a tea spoon full spread around. And it was pretty much dried. This is a spare vehicle for me so I was thinking that if its fixing to give me a lot of trouble, I'd get rid of it. Other than that, It's been a very good vehicle.

 

Normal. When your engine runs, there is a natural buildup of pressure in the crankcase from air, fuel, and oil slipping past the piston rings. This is known as blow-by. A little blow-by is completely normal as the piston rings are unable to seal perfectly against the cylinder walls. Your description of "A little oil" is not cause for concern. You could change the PCV if it hasn't been replaced in awhile.

 

Thank You!