Thank you.
You were right it was red! When looking at the oil on the dipstick there was such a small amount you couldn't really see it was slightly dyed red.
After checking with Cox as suggested they fully confirmed I needed CVT-F and has a red dye.
Gearbox oil flushed, run, emptied and refilled. First empty of oil was filthy. Didn't look that bad but when in a container could see it was really dark almost black.
Second empty and it was much clearer and red was visible.
After a nice long drive today it's much smoother and also noticed mpg was rising but that may be combination of new gearbox oil and new tyres combined.
I bought the genuine Honda fluid from Holdcroft dealers on eBay as cheapest, free UPS delivery and they were very local to me so got next day.
If anyone is thinking of doing it themselves it is fairly easy if you have jack and axel stands. Also a manual pump or very long funnel to reach the CVT fill hole from top of engine bay.
Thanks