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I have verified the info via the Owners manual as well as the dealer's Master mechanic (Toyota & Lexus) to confirm my findings...and they indicated to me that they never utilize Dextron II or III in any transmission that sits behind a V8 engine...as well as all Lexus models even the ones that have V6 and Straight 6 have been updated to Type T-IV ATF starting from 00 and up..... as for prior years 98-99 I was told only the V8's had the Type T-IV ATF........also I was told by the same master mechanics that a mixture of Dextron II or III with Type T-IV is not recommended at all...he never elaborated on what would happen if indeed someone made the mistake.......I did referenced to them that the Repair Manual is indicating Dextron II or III......their reply were: mistakes are common in those repair manuals as Toyota always issues a correction to the manuals based on the feed back they receive from the field technicians.......Sorry about the long post.......I hope I covered everyone's concern.
For of those who had mixed the two type of ATF's.....I would look to do a full flush through the cooler lines and replace it with the correct fluid.....again this is my $0.02....I would advise you to contact the dealerships near you and verify the accuracy of this info......I have done that and most of the dealers I spoke with they confirmed it.
Note: Please keep in mind that the 95 - 97 FZJ80 has the same transmission that goes into the 98-99 100 series....so that could be why we are seeing the Dextron II or III being mentioned in the repair manual......it could be carried over by mistake from the older model manual.....but again......this is me thinking loud....please do your diligent do and contact the dealers near you to verify it.
Thanks
Al
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