Thanks all - sounds fairly reassuring - I'll see if it corrects itself and if not try an additive and some higher ron petrol.
We shall see . . . .
And no Craig - I didn't hit a rock :lol: (but I'm bringing one of my son's hard hats from his building site visits - I think, just to be safe, you should wear one at all times when out in your Zed - any colour preference? )