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1999 S500 with 722.6 Automatic Transmission Filled for life?
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11-02-2007, 07:31 PM
300B
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Join Date: Jan 2007
Posts: 154
I do prevenative maintenance on HD equipment for a living in my opinion it would not be anything but benificial to service the tranny at least every 50k.
I just did mine at 54k with 7.5qts of Pennzoil Multi ATF and it's been operating superbly.
300B
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