A few days ago I bought a 1998 Eclipse GS-T for $300. The engine was fine but when you put it in any gear it wouldn't move at all. I assumed I would have to put a new transmission in. I got it towed to my house and just for the hell of it changed the trans filter and fluid. The fluid didn't even look like transmission fluid, it was black it looked like regular motor oil I can take a picture if anyone is interested. Once I put in the new fluid and filter I started it up and the car seems to be running fine, no slipping at all. Could the transmission filter possibly have been so clogged up it wasn't getting any fluid? Or maybe he had dumped engine oil into the trans? The oil was completely dark not reddish at all. Maybe I should do a transmission flush now to get the rest out? Thank you!