Any MTF 94 will work with the R380... BUT if you can afford go for the genuine stuff cos it works better than the replacements... R380 is the most "squeamish" gearbox i met in my life when it comes to oils, i've replaced the oil 6 times in one year and the genuine Rover MTF 94 was the best by far than other MTF94s or alternatives, there were so called "alternatives" recommended by so called "specialists" made by Castrol which i replaced after 1 week cos i struggled to select 1'st and 2'nd even when it was not cold... though i ended up with Difflock Evolution gear oil which is even better, i can change gears with two fingers even a -25*C with it... not cheap but for me it worths every penny of it, maybe in UK climate is not so important