2003 4.6is - New Transmission Fluid Change Interval?

[rds0812]

I recently sold my E39 M5 and bought an immaculately maintained 03' 4.6is, including a remanufactured ZF transmission, fuel filter and torque converter with approx. 25k miles and 3 years since installation.

Question: should I consider changing the transmission fluid at either 30k or 60k intervals going forward? I've read the horror stories of tyranny's going kaput after changing the fluid... thoughts on how to keep this new tranny in top shape, or will this one crap out after 100k miles like the rest regardless??? Suggestions on how to make it last?

Detailed repair list:

Timing guides/Timing Rails
- Timing Chain
- Vanos Seals & Replacement
- Upper & Lower Timing Cover Seals
- Valve Cover Gaskets
- Cooling System Overhaul: Water Pump, Thermostat, Auxiliary Pump, Clutch Fan, Coolant hoses, Heater core feed and return hoses, Valley Pan plate & Gasket, Coolant Reservoir, Trans coolant Thermostat
- Spark Plugs
- O2 Sensors
- Cam Sensors
- Serpentine Belt
- A/C Belt
- Belt Tensioners
- Idler Pulleys
- Fuel Pump
- Fuel Filter
- Engine mounts

Repairs/Replacement:

- ZF Factory Remanufactured Automatic Transmission with Dinan Stage 1 software
- Rear Main Seal
- Rear Engine block coolant seal/gasket
- Front Left & Right outer CV boot
- Complete Front suspension rebuild: Control arms, Thrust bushings, sway bar links, struts, strut mounts
- AC Evaporator
- AC blower resistor
- Window regulator - Right Front & Rear
- Door Handle Carrier - Left Rear & Right Front


Upgrades & Enhancements:

- Dinan Engine Tune Stage III, Dinan Trans Tune Stage I, Dinan CAI, Dinan Large Throttle Body, Dinan Exhaust
-H&R Front Sport Springs
- Sachs Front Sport Struts
- BMW X5M 4 piston Brembo front Brakes
- BMW X5M Front Cross Drilled Rotors
- Front& Rear stainless steel braided brake line hoses
- BMW M Sport Steering Wheel
- Suede Headliner
- GROM bluetooth Audio
- JL Audio speakers
- BSW X5 Custom Subwoofer
- BMW Front Windshield Comfort Glass