I bought a new test car (2000 Honda Accord with large 4 cylinder engine,
156,000 miles) The transmissions in these cars can not be flushed unless your willing to drop the transmission ( I am not) the fluid was brand new Honda Certified Transmission Fluid. Added 6 ounces of Auto-Rx to the new fluid. At 1000 miles removed the magnetic transmission fill plug it had black sludge and metal particulates stuck to it never saw anything like the transmission plug (black sludge type contaminants on magnetic plug) fluid as black as tar.
The Transmission Tech who was involved at the start of pouring the initial 6 ounces in this transmission told me nothing would clean the unit but a $1500.00 take down. At drain and fill time he was amazed. No he does not want to see Auto-Rx around as he said it could seriously damage his kids college fund.
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Frank J. Miller
-- Edited by Frank on Sunday 27th of May 2012 09:31:30 AM