in the picture above of the oil bottle - it has GL4 on it which is a step in the right direction, GL5 is to be avoided as it dissolves and damages yellow metal ..which your box contains.
lots of searches on google containing the words 88vt and mt75 ...bring them up together as one and the same .
according to a search on the comma oil site this is the one as recommended for:
Transit 2.5 Di (1995-1998)https://app.commaoil.com/commercial-veh ... /view/550#which isnt a strait oil as first recommended to you above in the pic of oil bottle -- this is MVMTF Plus 75W-90
This is a
multigrade gear-oil .indicated by the two numbers 75w90..will will be a a different thickness according to temperature, that helps save wear on the gearbox -- also fully synthetic ..which is also a plus.
all the best.mark