I'm using Shell at the moment as it's the cheapest where i live Tesco's is 113.9 and Shell is 109.9.

Theres people in SA using 85ron so i'm sure it will run just fine on 95ron. I normally get supermarket fuel unless the Shell in town is the same price. I might get slightly better mpg from the shell petrol over the supermarket stuff.

Your car will run fine on 95 RON, that is all it is mapped for.

SA's 85 RON is mapped only for SA cars.
If you put it in yours it would die.

I thought it was 91 RON though not 85??

I'm assuming SA means South Africa??? If so, they used 95 and 97 when I lived there, was not aware they had 85 RON??? I wouldn't imagine they would map a car to run on 85 .... ??

I must be thinking of somewhere else. South Africa's is 91,93 and 95ron.

Malta's 85