What does this stuff under the oil cap mean?
#1
06-13-2018, 07:17 PM
Join Date: May 2018
Location: Woodbridge, VA
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What does this stuff under the oil cap mean?
So I have a 2004 S40 with 1.9T engine. I was filling oil today when I noticed that the bottom of my cap has all this gunk on it. I remember watching a video where a guy said it means something, but I forgot what. I also had white smoke coming out of the oil tank, this was after that car had already ran a bit and just parked.
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#2
06-14-2018, 08:06 AM
It's just oil sludge. These engines get very hot and over time you get some sludge built up. On the bottom of the cap or the oil fill passage it's not a problem. When it builds inside your VVT solenoid then you will have issues. In other words, your pictures look normal for a 14 year old engine.
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