I need to change the thermostat on my 147 TS. I have a 2 litre bottle of premix Halfords coolant left over (still sealed) from when I did the heater matrix on my old Xsara Picasso. I believe it's the organic type.
Question is, which of the two Halfords premixes would I need for the Alfa? Can I use the red organic one I've already got or do I need to grab a new bottle?