A little bit of help - Gearbox recommendations.

Had my Clio 200 for a couple of years now and had the gearbox oil replaced shortly after ownership as I wanted to track it but unfortunately I became very unwell with my crohns.

I think it's getting to that time to have the clutch replaced so was going to be fresh oil back in the gearbox. It currently has Millers Oils CRX 75w-90 NT Competition full synthetic transmission oil and was wondering if I'm not going to be tracking it until I get better shall I just put regular Millers Oils EE 75w90 NANODRIVE High Performance Synthetic back in. Sorry for the long names habit of copy and paste. I take it There is no harm running the stuff I'm running currently as an everyday is there?

Links to the stuff I am on about.
http://www.opieoils.co.uk/p-60230-m...petition-full-synthetic-transmission-oil.aspx

http://www.opieoils.co.uk/p-74217-m...formance-full-synthetic-transmission-oil.aspx

Sorry if I went on a bit.

Cheers
Chris