I am running 65 micro with 35 green for the winter .
In the summer it was 100 green
I found the green when cold could be a tiny bit coily , it also did not retain the heat from the boiler as well as the micro .
So if what i will try today works then its all good .
I do still leave the green on slow traffic roads , its just the speed merchants who had a tendancy to make the green kick up into the air a bit as its sooo light !