MiniTransAm

I called the dealer before we picked the car up and according to their records the timing belt has been serviced! Do you change the tranny filter at your shop when you do a tranny service by any chance??

Howdy guys, first post on this forum. My fiance and I have picked up a 99 OBW auto with 103K on it. This weekend I plan on changing all the fluids. I plan on using, Mobil1 5w30 synthetic Mobil1 Synthetic ATF Mobil1 75w90 Synthetic Gear oil. Notice a pattern Just wanted to make sure there wasn't anything quirky with scoobies about using sythetic fluids. While this will be expensive, I'm a firm believer in them. The mobil1 website also recomened I use 10w30 in the engine. The manual says I can use this but 5w30 is recomened. Do you think Mobil recomened this due to the higher mileage of the car?? Do I also need to change the transmission filter? I read on another thread that this is a "lifetime" filter and doesn't really need to be changed. The fact that the filter costs well over 30 bucks, kind of reinforces that but also goes against my better judgement. Thanks for the help and insight.