Please correct me if I'm wrong but I'm not sure MTF94 is
I've used it in my '09 MCS
(MTF94 sticker on the gearbox) and improved the gearchanges in the '12 MCS
(no advice sticker) that replaced it already.
I keep 3 litres on the shelf now because it works so well but I've never seen 'synthetic' claims on any of the packaging.
Incidentally, I've kept in the back of my mind that I'll change it frequently (perhaps even yearly) since it isn't synthetic and it's an easy job.
update: just checked. Can't see any 'synthetic' claims on my Carlube MTF94. There was nothing synthetic on the Landrover MTF94, that I used last time, either...