Thank you all for your concern, today I went to a Toyota service center, and they changed the transmission oil for about 4 liters, and they also changed the filter, and they told me to change it again at 120,000 km, I think my procedure was a little early, but it undoubtedly gave me confidence and peace of mind The funny thing is that they did not have the original fluid ( FE ) for the transmission, but rather they had something equivalent from Korean production (CEFX), so I had to buy them the original oil from the market to add it to my car, I was so stubborn that they gave up and gave me special permission to bring the original oil from the local market LOL.