i won't recommend other types of fluid. the honda transmissions are designed differently, which is why they require a propietary fluid. problema lang dito sa atf-z1, mahal. last time i bought it was 570/liter.
alam daw ni speedyfix kung ano maganda alternative, so i guess you can consult him on that one. but i'm happy with the honda spec fluid, its cheaper insurance kasi.
go for OEM na, pagdating sa tranny... para wala ka na iisipin.
just bought today from Honda Cars Shaw. P550.00/L 4L binili ko para sigurado... some kasi 3.5L naubos, 'though naubos ko lang is 3L. btw, i drop by na din kanina sa speedyfix for the service.