OK car gurus, here's the deal.
My faithful old Honda car is in need of new trannie oil. Honda recommends using only their own MTF, of course.

Not being over enthusiastic at the idea of being financially raped by Honda (I also need new rear brake shoes, air and oil filters) and being bent as awlays to spend as little as possible on the car to waste money on bikes I am out for cheaper alternatives.
Will a normal, API GL4 rated semisynth or mineral oil do the trick?
Thanks!