I'm not sure I'm going to like the answer to this question, but...
...there was some seepage/dribbling down the expansion tank on Sunday.
The coolant level is slightly lower than before, but as far as I can see (it's a bit difficult to see) there is no oil in there.
There is nothing to see in the oil filler, but the dipstick is reading more than max.
I haven't looked at anything else.
Any cheap to fix ideas?
Cheers
Mike