I had my oil changed and they found the air filter had oil on it. What would cause this?
Jul 18, 2009 at 8:52 PM
2004 Mazda 6 oil in air filter
2004 MAZDA 6
KASTONE62
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Hi there,
This is normally due to excessive crank case pressure, have a leak down test done to check ring condition and get the PCV valve changed, start here.
Mark (mhpautos)
This is normally due to excessive crank case pressure, have a leak down test done to check ring condition and get the PCV valve changed, start here.
Mark (mhpautos)
Jul 18, 2009 at 9:04 PM