I have a 01 996 C2 tip with 49,000 miles on it. I've owned it since 15,000 miles and the transmission fluid has never been changed. I track the car about 15 days each summer. When is the fluid to be replaced and should I do it sooner since I track my car? I called up the dealer and they wanted 450 bucks. That seems outrageous. Is this something you can DIY. I do all my own brake work, of course this is easy. Thanks.

 

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