NicRobinson

Thanks for all the input guys. I think I'll stop worrying!

How so?

Great question. This is exactly what I'll be looking for in a few months. Have you considered a Mk II with low miles and K&K spec?

I think I'll continue with 98. This car might be in France permanently now so I need to find a good specialist to take over looking at the Citigo.

It's always done it and has had 3 services now. Plus it's always been so faint as to be only noticeable by the terminally anal (me). That the tiny sound now seems gone is probably a good thing.

I think, of course it's am SDi on the Citigo. Our other car is a 1.0 TSi Octavia and that is more than happy with anything. I don't think 98 makes a difference for that one.

Interesting. Never really noticed the ron numbers back home.

Our 2017 Citigo is definitely our "second" car and as such I've never thought too much about the fuel I put in it. Normally Esso or Shell, occasionally supermarket, but always regular 95 unleaded. Anyway, I've always had a feeling that, under power, this car was very slightly pinking. I never gave it too much thought, but it's always been there, in the back of my mind. Today (yes it really did take me 3 years!) I tried a tank of 98 and instantly the pinking is gone. Clearly this particular engine is just right for 98 octane fuel. Fortunately here in France the price differential is very small between the grades (often the basic price is reserved for E10) so there's little extra to pay. Can't yet say if it's quicker or more economical...those would be a bonus and, after all, it's a Citigo!