4685, RE: Will transmission flush do more damage than good? Posted by teklein, Dec-31-69 06:00 PM
Hrm.
If the fluid still looks mostly red I would go for it. Work Suburban was never changed and has around 170k on it. They flushed it against my advice and its been fine for 30k miles. When I worked at Valvoline way back in the day, we were told to not do a flush if they do not know the last time it was flushed and it had 100k+ on it.
I am not a fan of the flush using a machine though. Unless you mean buying a new filter for it and then refilling with fresh fluid.
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