A4 1.8T Q (B6)- SLUDGE problem confirmed

[Taka Mizutani]

Scott-

I'm just a bit curious- I had a '99 A4 1.8T with 61k miles, never had
any issues with sludge.

Then again, I used Mobil 1 0W40 black cap "european car formula" for
the entire time after the original factory fill, including all
scheduled maintenance, with OEM filters.

I was under the impression, especially the way the TSB was worded that
the sludge issue really only occurs with standard oil, synthetic
should not have this happen.

My car was very very clean when the head was pulled.

Taka