in my 1000 when ever I have less than about 2/3 tank the fuel and temp guages will slowley go down and then come back up to where they should be. They can do this endlessly, and then be fine for ages. It doesent seem to do it when Ihave afull tank though. sometimes though, it will just stop totally, which is not good as my car runs a bit hot as it is, and I am paranoid about overheating.
Not a big thing really, but infuriating.
not too sure what to do.