Just been to local garage again they had a look and listen and said it isn't that bad which in truth it isn't as it doesn't effect anything other then the idle they said it shluld be fine to run and that. Ill probably change sparks anyways and that. Obviously ill stay posted for any deterioration or faults.
Thats nice to get an opinion at least that might help you feel a little better about things
When..how far.. was its last decent journey?
At 93k.. there will be some wear.. oily blowby on that sensor
But motors can run for 10's of thousands of miles doing that..
In itself not a disaster