Good quality antifreeze is mixed 50/50 with water. Water level is correct in radiator.
Radiator cap is a new one.(Will check temp on cap but I think they are standard?)

I noticed that there is a small gap of about 10mm between the top of the radiator and the radiator support at the top.I think when the fan is blowing, not all air is going through the radiator but some passes out through this opening.Will put something in there to block it up so that all the air goes through the radiator.

Just curious as to it was not maybe bad running the engine so hot.