I'm seeing oil on my air filter. What would cause that?

Asked by Apr 26, 2017 at 07:06 PM about the 2003 Mazda MAZDA6 4 Dr s V6 Sedan

Question type: Maintenance & Repair

4 Answers

87,155

It wouldn't be a K&N filter would it? I don't see how oil can get to the air filter otherwise. Unless there is a breather hose running to the air box, be the only other way, see where the hose runs to.

280

Check the PCV valve if bad replace new one if it's good pull the spark plug and look for them witch one has oil some time broken or bad piston ring will cause that..thank you and I hope this will help you

1 people found this helpful.
120,195

Blow by.

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24,525

Go to this page. Copy & paste Url. http://www.powertraindirect.com/what-does-oil-in-the-air-filter-mean/

2 people found this helpful.

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