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Post Info TOPIC: ARX is boss in Audi transmission


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ARX is boss in Audi transmission
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The car is a 1993 Audi 100 CS quattro with a ZF automatic transmission.  The odometer showed 227000; past maintenance history not known.

The engine would rev a few hundred rpm on the 3-4 upshift when at operating temperature.

I changed fluid and filter; it did not help.  I installed Lucas transmission fix (you know, that stuff that is as thick as STP); that did not help.

I installed 6 oz. ARX; that not only helped, it completely corrected the problem... and only after a few hundred miles!  Furthermore, the upshifts, which were a bit soft (but not bad) are now very quite firm. 

I drove 1300 miles, then dropped the pan and changed the filter again.  Things looked very clean in there with barely a hint of fuzz on the magnet. The fluid looked like new.

I'll perform a drain and fill a couple of times just to insure that any bad stuff that may be in there is mostly gone.

Nearly 3000 miles have elapsed since I treated the tranny to ARX and it continues to run strong.

So far, this stuff has worked every time I have tried it!

Thanks ARX!

Mike



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