I got the in-line Magnefine filters from IPD, but you can do a Google search for Magnefine and possibly deal with them direct. I haven't had them in long enough to tell what the benefit is ( only bought the car last June)

Hi Steve,
If you thought your wagon sounded like a bus try driving a 95 Saturn, between the rattles and that groaning engine it was just deafening.

The rattles and squeaks on my 98 S70 T5 just got unbearable so I had a friend drive around going over potholes while I listened. It sure is hard listening for rattles/squeaks while driving. These other drivers must think that I had some sort of some strange reaction everytime I ran over a pothole!

The first I did was tighten all the torx fasteners on the dash (about six), there're found behind the side and centre vents. Next was rattle from the dash tweeters, put a dab of silicone on the plastic fasteners. Next was a squeak on the centre console near the ashtray/coin holder fixed with putting some liquid silicone where the trim touches each other. Next was a squeak from the glove box which I swear sounded like a mouse which was fixed by spraying some liquid graphite lube on the lock & latch mechanism. The last one I found was a squeak from the seatbelt receptacle of both the driver and passenger seat, I sprayed some WD40 on the spring and where it pivots. My quest continues as there is this strange "boing" noise everytime I go over a bad pothole, sounds like it's coming from the driver's side somewhere. I'm starting to think I'm getting a little obsessed.