Toyota T-IV =? Aisin T-IV =? Aisin/Mobil JWS3309 =? Mini JWS3309 ??
#1
Toyota T-IV =? Aisin T-IV =? Aisin/Mobil JWS3309 =? Mini JWS3309 ??
I would like to get a definitive answer on this if possible ... Toyota Type T-IV is dirt cheap at the local Toyota dealership, Aisin/Mobil are a bit pricier but I am having a hard time finding them anywhere on the SF Peninsula ... and MINI ATF is outrageously expensive so I won't go there.
I have seen plenty of forum threads claiming/confirming equality between the various pairs of oil brands I mentioned in the subject line, and that the Aisin/Mobil ones work fine in the MINI's Aisin transmission ... what I haven't heard is someone using Toyota Type T-IV in their MINI. Has anyone heard of this?
Thanks. John
I have seen plenty of forum threads claiming/confirming equality between the various pairs of oil brands I mentioned in the subject line, and that the Aisin/Mobil ones work fine in the MINI's Aisin transmission ... what I haven't heard is someone using Toyota Type T-IV in their MINI. Has anyone heard of this?
Thanks. John
#3
Here's one for Aisin OT4 that says it serves Type T-IV applications ... The metrics listed are an uneven overlap with that of the other two fluids so hard to tell how close they are ... this one shows a lower viscosity at 40C, but it states it as a lower bounded range, I don't know enough about these fluids to know what's important to compare.
Last edited by jkowtko; 06-07-2020 at 07:53 AM.
#4
After seeing enough claims that the fluids are the same, and verifying that my MINI has an Aisin transmission, I pulled the plug and used Toyota Type T-IV ATF, 3 drain-and-fills at 2 qts each. So far so good, the transmission shifts smoothly (or about as smoothly as it ever has) ...
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