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Old 03-09-2017, 10:48 AM   #1
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Default catch can contents

what should the oil look like coming out of my catch can? drained it the other day when I changed my oil and there is some sort of light colored sludge in it.. is this normal or bad?

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Old 03-09-2017, 11:15 AM   #2
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Not good. Your not running coffee as oil are you? Please say yes. LOL
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Old 03-09-2017, 11:18 AM   #3
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Mine is always black and runny. Yours looks like it's got a lot of condensation/water in it unless it reaks of fuel.
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Old 03-09-2017, 11:22 AM   #4
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Normal......
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Old 03-09-2017, 11:40 AM   #5
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i see light aerated stuff in mine too, but i think its ok
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Old 03-09-2017, 12:02 PM   #6
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Like thunderstruck said, you either have a lot of condensation build up or fuel is getting in there. If it smells like gas and oil mixed, there's your answer. Mine looked like that from time to time on my procharged sss, but it was never that chunky.
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Old 03-09-2017, 12:40 PM   #7
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would a cold thermostat cause the condensation not being evaporated from the engine not reaching high enough temp?
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Old 03-09-2017, 04:20 PM   #8
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no coffee, ha. I did read that the condensation will cause the sludge looking stuff.

if gas is getting in there, what's the possible problem/solution?
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Old 03-09-2017, 04:24 PM   #9
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At worst, you have coolant leaking into your crankcase.

At best, it's condensation. How long do you normally drive the car? 30 min? 45? Usually takes a while for the oil to heat up enough to cook the condensation out of it.

As for the fuel, the only cause I can think of is excessive blow-by from worn rings.
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Old 03-11-2017, 12:20 PM   #10
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Mine looks like that at times. Especially when the car isnt driven far or only started long enough to be moved.
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Old 03-11-2017, 12:21 PM   #11
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Open the radiator cap and have a look inside. Also, any of this stuff on the coolant overflow tank stick?

If it's foamy like your pics, there may be a rebuilt engine in your near future.
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Old 03-12-2017, 01:01 PM   #12
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I get this alot during winter months when i warm the car up every other week or so.Its the condensation in my case..and it has a weird smell to it.not like gas in the oil smell..just a weird foul odor lol. But during the summer it would be black runny oil.
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Old 03-13-2017, 10:50 PM   #13
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alright cool, i think everything is okay then.. I have been driving it this winter cause my daily crapped out on me. I only drive 10 miles to work n it takes maybe 15 minutes to get there so I'd say it's the condensation because it isn't that bad during the summer
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Old 03-14-2017, 08:27 PM   #14
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Yes, I get that during the winter and that same sludge will sometimes build up on the filler cap as well. I do a lot of short trips in town. Been doing it for 13 years and running ...
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