Hello, I have been reading here for a while but this is my first post and I've got a big problem. I have a 2004 Titan with 117000 mile on it, the normal cracked exhaust manifolds, bad cats etc but now its using oil like crazy. I change my oil at least every 3500 miles and it is getting time for another service but as I was driving in town the other day I noticed my oil pressure gauge dip to low a few times and then stayed down there fluctuating a little. I pulled over to check the level and it didnt read on the stick, It ended up being over 4 quarts low! The next day I checked it and it was down another quart and a half, and today it was down one quart. It's burning it because today it started sputtering and chugging like the cats were plugged( witch they are now) and I stuck my finger in the tail pipe and its just coated with burnt oil/tar. So my question is, do I now have a good looking pile of junk in my driveway and how am I going to hide this problem long enough for the dealership to accept it in on trade? I just want to scream and cry because I really thought I was buying a very good used truck when I got this and didnt want to go 30 grand in debt right now but I think if I'm going to get ride of this its now or never.