Coolant Mix in Oil Filler Neck
#1
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I've been pretty religious about my oil changes and monitoring the car's temps since buying my 996 and have recently started to notice what appears to be a slight mixture of oil/coolant in the oil filler next. Both my last 2 oil analyses appear clear, and I just changed the oil and it also looks clear. I'll wait for the analysis to come back but everything seems fine - temps, oil pressure, etc. Anyone had this experience? Is it a sign of impending head issues or a blown gasket somewhere?
#5
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If it's just a little creamy residue , it's caused by oil mist mixing with a little water condensation in the oil cap and neck . The filler neck is pretty long and prone to condensation
its most common on city cars that don't go for a long enough run to get the engine good and hot .
.short city hops contribute greatly .
clean it out , increase your oil change frequency , go for longer runs , and a little wd40 inside the cap.
its most common on city cars that don't go for a long enough run to get the engine good and hot .
.short city hops contribute greatly .
clean it out , increase your oil change frequency , go for longer runs , and a little wd40 inside the cap.
#7
Rennlist Member
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Kinda looks like this?
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#9
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I remember when I saw this right after I bought my car and almost had a cow, thinking it was intermix. Was just from a couple startups in the cold and not warming up. After a good run it disappeared.
#10
Race Car
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I remember doing the same thing, I may have even started To thread about it on here eeep! Went on a nice 400km road trip this weekend, probably got rid of whatever mayo was forming. Traded mayo buildup for some nice stone chips... Woot
#11
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I drive a good hour both ways for work in this, both in traffic and at highway speeds. I'm putting about 4k miles on the car every 1.5 months, its a low mileage car though since it only had 30k on it when purchased. Sounds normal then - if I hadn't seen clean oil during the change yesterday I would have been more panic'd, but seems normal.