Actually this is WAY to long between changes. The fluid/filter should be changed every 36k. Who did the service?
I am asking this because a quickie shop or a less sophisticated ship will use machines that actually damage the tranny. The machines use high pressure to flush the system which in turn damages the transmission.
A high end or sophisticated shop uses the car’s transmission pump to flush the system this way the vehicles spec pressure will be used to flush the system.
I had written to an "official" subaru parts online store to ask for the pricing for the transmission filter for my 03OBW, they replied back to me, they said that those filters are lifetime filters and don't need to be replaced unless something catastrosphic happens. Won't that be too late???
But from what I have read from various posts, the general concensus is replace filter at least every other fluid replacement. And I like the idea of doing it ever 15kmi since fluid costs are a lot less than a transmission replacement. Just like oil changes, I will always change the oil filter whenever I put new oil in. Just don't see the point in reusing the oil filter.