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    yellow gunk in oil filler tube - head gasket problem ?

    I read a reader response in GT magazine for Porsches that stated that they had discovered some yellow creamy "gunk" in their oil filler tube on their 996, when checking their oil after 8,000. The magazine editors replied that the car may be headed for problems with the head gasket, as this indicated that the head gasket was "unhealthy" in their words. Is this correct ? I have the same situation. Has anyone else experienced this situation ? Any information or opinion would help. I will call the dealer on Monday, but want some info from the board........thanks.....

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Sounds like water in the oil......

    Re: yellow gunk in oil filler tube - head gasket problem ?

    It is not uncommon, it is condensed water vapor, more often than not it is a car that does not get driven enough, lots of short hauls, to burn off the condensation....
    Solution: drive the car alot MORE, with extended runs, not short hauls

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Funny - I just read that in GT today and I had planned to create the same post you did.

    I also have the yellow creamy substance on the cap and nozzle for the oil filler tube. I first noticed it when I was adding some oil late last season in cold weather and I just assumed that it was regular oil that had partly solidified because of the cold (I live in Canada), but I became worried when I noticed that it was still there even now that its warm, and especially after I read that reader response in GT.

    I do a real mix of short hauls and long highway trips. In fact, I just came back from a 5 hour highway trip and it was still there. I drive fairly aggressively, and there's no question that I get the engine temp and revs up.

    My gut tells me that its nothing to worry about, but I remain interested in the responses of others. Does everyone get this? Why would GT magazine suggest there was a head gasket issue?

    -SB

    Re: yellow gunk in oil filler tube - head gasket problem ?

    I've had the same yellow stuff in my new C4S. I just used a lint free towel and cleaned it out of the cap and filler tube. I hope it's not a problem....

    andrewb, please update this topic after you talk to your dealer.

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Quote:
    Silver Bullet said:
    I do a real mix of short hauls and long highway trips. In fact, I just came back from a 5 hour highway trip and it was still there. I drive fairly aggressively, and there's no question that I get the engine temp and revs up.

    My gut tells me that its nothing to worry about, but I remain interested in the responses of others. Does everyone get this? Why would GT magazine suggest there was a head gasket issue?




    Your gut feeling is probably right.
    I've had this regularly on several Porsche's down the years, including air-cooled ones. The cause was explained in Trundle997's post above. Though I haven't really looked into it, I suspect that once the foam deposit has got into the oil cap during a few short runs, it will not then be removed automatically if the car does some longer hotter runs. I never had a blown head gasket on any of the cars concerned.

    I would suspect that the magazine may have said that it is a possible cause, rather than suggesting that it was the most likely cause?

    Re: yellow gunk in oil filler tube - head gasket problem ?

    When I was a college student I had a head gasket failure on my old clunker. The oil and water "suspension" looked like a chocolate milkshake.

    I agree with Fritz. Most likely this is residue created on the shorter trips by condensation + some oil component. If it were truly a head gasket problem you would be consuming coolant, not just seeing this material in the filler tube.

    mcdelaug

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Quote:
    fritz said:
    ...Your gut feeling is probably right.
    I've had this regularly on several Porsche's down the years, including air-cooled ones. The cause was explained in Trundle997's post above. Though I haven't really looked into it, I suspect that once the foam deposit has got into the oil cap during a few short runs, it will not then be removed automatically if the car does some longer hotter runs. I never had a blown head gasket on any of the cars concerned.

    I would suspect that the magazine may have said that it is a possible cause, rather than suggesting that it was the most likely cause?



    I would think so as well.

    The reason they suspect a bad gasket is that water from the cooling system gets into the oil circle when the gasket fails and doesn't isolate properly. This SHOULD NOT be the case on the Porsches, especially with such a low mileage!

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Condensed water in the oil is not good for the engine...it will reduce the lubrication "effect" of the oil. The worry is not headgaskets, but pre-mature bearing wear.
    In addition to longer drives, the best thing to do, is change the oil every 6 months, regardless of mileage. There can literally be a "couple of cups of water" in 10 quarts of oil if the car has not been driven much and the oil not changed for 9-12 months!!!

    Re: yellow gunk in oil filler tube - head gasket problem ?

    I asked a mechanic at my P dealership tody and he said not to worry - all Porsches have this.

    So there you have it.

    -SB

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Figured so...thanks

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Quote:
    964C2 said:
    In addition to longer drives, the best thing to do, is change the oil every 6 months, regardless of mileage. There can literally be a "couple of cups of water" in 10 quarts of oil if the car has not been driven much and the oil not changed for 9-12 months!!!



    You'd think Porsche would've noticed this after producing hundreds of thousands of engines down the decades, and considering they'd have an interest in minimizing warranty claims arising from total engine failures as a result of lubrication breakdown?!

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Don't worry about it, very common, just means you actually drive your car as it should be!
    A car with a blown head gasket runs like crap, when you drain the oil, looks like a milk shake.
    Enjoy your car!

    Re: yellow gunk in oil filler tube - head gasket problem ?

    Quote:
    C4S Surgeon said:
    Don't worry about it, very common, just means you actually drive your car as it should be!
    A car with a blown head gasket runs like crap, when you drain the oil, looks like a milk shake.
    Enjoy your car!



    Hi Doc,

    If your "don't worry" comment was intended for me, I really wasn't worrying.

    My last post was intended to be a sarc..., ummm, an ironic expression of disbelief!

     
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