Oiley Air Filter Box


Asked by Dudley Mar 04, 2010 at 10:47 AM about the 2006 Dodge RAM 1500

Question type: Maintenance & Repair

In my 06 5.7 Hemi I went to check my air filter and to my surprize the air filter appered to have a lot of oil in it and also the bottom of the air box appeared oiley.  Whats up w/ that? is this normal?

9 Answers


If it isn't an aftermarket cloth filter then someone probably soaked it with too much oil after it was cleaned last.


well first off your not supposed to clean basic filters because theyre paper elements, only the after market brands like K&N get oiled and cleaned. but other than that i cant really answer the question but i would definitely replace the filter


oil was filled too quickly at last oil change. the oil backs up in the filler neck when filled too quickly and runs down the hose to the air box.

11 people found this helpful.

1998 Dodge is getting a little oil in air filter

4 people found this helpful.

Too much oil might contaminate the air intake sensors and block air flow.

3 people found this helpful.

It's called "blow by" because the crankcase is vented into the intake manifold through the air filter box. The solution is simple, add an oil catch can into the system and the blow by issue is resolved.

8 people found this helpful.

There was At tea spoon where my finger is pointing of oil looked New. How could I prevent this and why is it doing it?

Your Answer:

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