now close 132k km.
you can use the 20k reference la..
for me..i have bad experience that i shared before.
bought atf from shopee before, after change liao, gearbox a bit go crazy sometimes. didn't realize it coz i change a lot of things in that period, i thought its something else.
so after i persist a year and change atf fluid last year. gearbox become good back. baru realize maybe coz its the atf i bought online.
so this year is the 2nd time i change ATF after the incident.
as bro Thrust mentioned, changing ATF fluid don't drain all your atf fluid from the system. probably just a quarter of the total atf in the system.
so now i will follow around 1 year change once ATF.
now much more smoother than las year

im using fully synth ATF from Penrite, so no issue just only wish to change it due to near 20k mileage