ATF to quiet lifters?

[Per Lindgren]

Yeah I tried it, and I dont know if I would try it again. When I bought my last
Audi (92 100 2.8q Avant), the valve lifters wre tikking extremely loud, and the
oil in the crankcase looked like tar. So I poured about ½ quart of ATF into the
oil and drove it for 2 minutes from the FLAPS to the garage where I was to
replace the oil. While the lifters quietened down immideately, the long term
effect was no good. The carbon deposits around the piston rings and valve guides
washed off causing the car to drink oil like a 2-stroke engine. So I doubt I'll
try that again. At least not that much ATF into the oil.

PerL
92 Cabrio 2.3E



Peter Kirby wrote:

> A friend recommended that I use automatic transmission fluid (ATF) as a
> penetrating oil to get a tie-rod end off.  It seemed to work great.  While
> somewhat dubious of his suggestion, I did a search on the net re ATF and
> found people recommending it to silence hydraulic lifters:  drain a litre of
> engine oil and replace it with a litre of ATF.
>
> Anyone try it on the Audi engine?
>
> Peter