Hey guys,

New here, I have a 1990 525i with 127k mi, calypso red. I would post a pic, but have no where to host it.

When I bought it a little over a year ago, It was pretty sound, but now it seems as if It's starting to fall apart.

The OBC is telling me 12.8 - 13.4 mpg on average around town, but around town for me is 90% of the way a steady 45 - 50mph. (long road cuts through middle of the city) Also the engine is getting very rough. If I hold it steady at 2k rpm, I can feel it miss every few seconds. It also likes to get rough enough (in cold weather, regardless of engine temp) to rattle my door panels. I replaced all of the filters, recent oil change, changed spark plugs. Tested the o2 sensor and it seems to be responding within the range of voltages as on http://www.wps.com/LPG/o2sensor.htmlhttp://www.wps.com/LPG/o2sensor.html
Also - it doesnt like load from what I can tell. If its cold outside and ONLY if its cold outside (first start of the day) When I shift it from park, engine speed drops to barely over 250rpm and the car shakes violently and it slowly catches itself back up to the usual steady 600.

also : off topic, but its developing some steering play, how often is it the box? whats the price to rebuild that thing?

I know this was a lot, but I would greatly appreciate any help I can get. I'd hate to part with my car, but this kind of stuff makes it feel real beat to me

Thanks so much!