Xoutpost.com - yellowish "Goo" on oil filler cap?

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- - yellowish "Goo" on oil filler cap? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/69731-yellowish-goo-oil-filler-cap.html)

Quote:

Originally Posted by Vsmvince (Post 704707)

We can repair it for you at my shop if you'd like.

V & S Motor Service and Collision
207-20 northern Blvd
Bayside Ny 11361

718-229-6800

Ask for Vince. It is a one day repair

You should look into a membership for vendors. You are currently posting as a private individual, and promoting your commercial enterprise. That doesn't seem to me to align with the board rules. I am sure the admins would appreciate your sponsorship, and there are dedicated forums specifically for vendors to market their services.

Quote:

Originally Posted by JCL (Post 704731)

It is not the crankcase vent valve, also known as the oil separator. It is due to condensation in the engine, which emulsifies with the oil. It is the result of doing lots of short trips where the engine doesn't get hot enough. If the engine does get hot enough, the condensation boils off. If it doesn't, it collects over time, often under the oil filler cap.

Now here is the connection to the CCV, or OSV: the condensate can collect in the crankcase vent valve, and clog it up. If it gets cold enough, the condensate can freeze, blocking the valve. That is when you get problems. The CCV is not the cause, it is where the symptoms can occur. Since it is so often mentioned in conjunction with this problem, people assume that the CCV is the cause.

The cure is to do a few hot oil changes in short order, and ensure that your driving includes a few longer trips that keep it at bay. You may want to get the CCV checked and cleaned out if you live in an area where it gets significantly below freezing, to manage the risk of a failure there. If you don't live in a very cold area, there is limited risk.

I agree as well. I just see these "goo" on oil filler cap threads and push the O.P. to search oil seperator issues so they can see what the "goo" means. I would do as JCL suggested. Good advice. :thumbup:

gotcha Jcl Will look into that. Didnt know that was a nono.

Quote:

Originally Posted by JCL (Post 704745)

:iagree::thumbup:

You can properly put it between two slices of bread.....

exactly well put jcl, right on the money

All German cars get that goo. I had a terrible problem with it on the BMW. My thermostat was stuck open! Engine never got past the blue. I was cleaning the lid every day along with the inside of the block (as far as I could reach). Repaired the thermostat and changed the oil the next day (while it was at its hottest). Then I drove to Nebraska and back last weekend. No moisture at all!! Checked my Mercedes, same thing. I take that out for a 30 to 45 mile drive a week to keep it clean. Work pays mileage!

Quote:

Originally Posted by JCL (Post 704731)

I just want to say this is an excellent description of the symptoms and possible consequences of this ever so common problem. Great job! :thumbup:

Yellow Goo for Dummies

JCL gets my vote for post of the season.
After reading his post I realized I am the perfect candidate for yellow goo. My best friend lives a block away, the supermarket /dry cleaner is 2.5 miles away, and the 19th hole is 10 miles away. Glad I'm getting my bathroom remodel done, looks like I am going to have to move!

OK , so a few=3 hot oil changes, in short order = ??????,
I'm going to try and work something out with an indy.
Thanks for your help.

http://picasaweb.google.com/lh/photo...eat=directlink

Link to Pic

Here is what mine looked like I changed the oil. I will wait 1k miles and change it again. Unless JCL i should do it 3 times in a row but man that's a lot of synthetic just to flush out the yellow goop. Better that then a new engine though.