acura1972

As per my title, I replaced my AT fluid last year when I proactively replaced my radiator. eg July 2022. I just got my maintenance minder indicating B13 service. Do I have to replace both the transfer case fluid AND AT fluid again per that "3" indicator?

(I did not have a "3" indicator last year as I just proactively replaced radiator and thought replacing AT fluid would be convenient since my mechanic had to remove some AT hoses attached to the radiator anyways)

And correct me if I am wrong, I only need 0.5 Liters of Transfer Case fluid for this? eg One Quart is more than enough? (FWIW, 13 yr old RDX with 125k kms on it now)

Many thanks

thoiboi

no just reset the light and be done with it.

acura1972

thanks. Did I get you right? I don’t even need to replace transfer case fluid even if I only did AT fluid last year and did NOT change transfer case fluid? (Thought the 3 service merited both AT and transfer case fluid)