White film on oil cap...

[Marc Swanson]

> Ugh, will it ever end?
>
> I went to check the oil on the wife's A4 2.8 12v, and
> to my dismay, I noticed a white film lightly coating
> the oil filler cap. It was also seen in the general
> area below the filler, though there was no evidence of
> it on the dipstick. A quick check of the coolant was
> inconclusive, shining my mini-maglite into the resivor
> it looked murky, but not sure.
>
> What think the collective great Audi minds?
> Headgasket? Could it possibly be Teflon? I found some
> Teflon tape on the oil drain plug after the oil was
> changed by someone other than my self..


Don't worry yourself too much.  Often that "milkshake" like substance can be
caused by driving short distances (make a lot of trips to the grocery
store/around town?).  Basically the oil never gets hot enough to evaporate
the water that condenses in the oil sump and when driving this accumulates
as the sludge you see on the cap.


HTH


-Marc-

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