Link I had a leak from the power steering pump's o-ring on my Grand Marquis, so I went ahead and added some of this stuff to the system. I'm happy to say it worked, and now I don't have to pull the pump off and replace the seals. Thinking about adding 2 tubes when I do the transmission in 6,000 miles, seeing it cleans.
ATF Additive Due to the additives contained, rubber and plastic seals in power-steering and transmissions receive optimal care. Leaks in the gearbox caused by hardened or brittle seals are prevented or remedied. In addition, holes and ducts in the transmission are cleaned, the performance of the oil is revitalized. The noise from the power-steering will be reduced and the shifting operations are improved. Using ATF Additives, the service life of automatic transmissions can be lengthened and repair costs reduced.