How often should this be changed? Robby in Spokane

Most external filters supposedly never need to be changed according to Subaru....but it's something you could do at 30,000 or 60,000 mile intervals if you want.

a good question.....I don't think that info is listed in the owner's manual. I bought my 99 OBW used, and just recently changed the filter with 161K miles on the car. I am certain that the filter I removed was the original. Buy the filter made especially for the automatic transmission. It looks the same as the oil filter, but the internal filter media is different.

 

My guess is that the filter should be changed in the 75K to 100K milage range.

 

Don't bother to change the screen filter inside the trany pan. That was a real PITA. The screen doesn't really filter much. Also, the trany pan wants to leak after rebolting.

Thats one of them parts if you think about it, change it.

Great thread recently on this http://www.ultimatesubaru.org/forum/showthread.php?t=86338&page=4

 

I used the Power King Automatic Transmission Filter on a '03 Legacy GT sedan and it shifts better now. Replaced it at 65,000 miles and there was residue already inside the tranny filter! I would replace it!

My guess is that the filter should be changed in the 75K to 100K milage range.

that sounds about right. i'd add to that a time interval as well. i wouldn't want it on there if it was 5+ years old either.

 

and definitely don't replace the internal "filter". it's not realy a filter, it's a only a screen and doesn't get dirty.