go with the 180. the cold starts in the winter wil suck with a 160. and your heater will take longer to heat up

My SES indicator has been on a while, the lube place ran it for me and it came back P0128 also. After reading this thread I replaced my thermostat this AM (the car had been running real cool rarely getting above 165-170).

My question is the SES light did not go away, will I have to reset that by disconnecting the battery or will the computer eventually reset it>

The place you got it scanned at can reset it. I took mine to Autozone.

You can unplug your battery for 20min or so it'll go off, or you can just wait and it'll go off if the problem is fixed. I think 3 trips (?) will do it

Thanks guys I just left it alone and it cleared itself this morning.