Ive just flushed it, new coolant, new oil, good quality fuel & oil.
Its running much better... Fan on & fan off after a couple mins.. Not boiling water.
Ive just mixed. 200ml top quality 2t oil with 12ltr of bp ultimate unleaded.....
I cant do math... So dunno what ratio that is prob 50/60:1
I will google what 80:1 works out per 1ltr so i know for future.
And yes it does look like i need to descale rad...but i'll do that next on list.