I used an ST wiper for $3 or so from WM. The wiper works pretty good but the metal assembly is rusting and looks terrible. Meanwhile the oem assembly on the passenger side still looks good after 13 years in the rust belt. Good thing I kept the oem driver's side to replace with a wiper insert.
So I checked my friend's car. First thing I noticed was the air filter assembly was ajar about an inch on the front side of it. Easy fix, not quite. Then I noticed the plastic tabs are broken not only on the top piece but the bottom assembly as well. So I figured that was it and told him about it. His reaction was kind of along the lines of, yeah I know. The air filter was sitting fine where it was. He gave me the keys to drive it but didn't do that after the airbox discovery. Plus he said come in and sit down. Not so sure I want to investigate it much more. I have a few things I need to take care of on the Matrix.
Maybe next time I will drive it and listen for noises. Then try a new oil filter.