Went in for the same service with my trusted mechanic and he said the same thing. I had no idea but it makes perfect sense. Kinda reminds me of the theory why Mr. Burns never gets sick on the simpsons.Machine flush is not recommended for vehicles with high mileage. I did drain and fill, cranked it, went through all the gears, turn off, and do it all over two more times. Your fluid will all be fresh and red like new , torque converter as well. Many have reported that after a machine flush their transmission goes toast. This is because tiny metal shavings from normal wear gets pushed into places they should not be in. Transmission in an automatic has many channels like inside an ant hill where fluid travels.
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