Hi everybody, first of all congratulations for such a great forum, I've been reading it for a month and learned a lot of things about the Xterras.

I have a question about the AT fluid. I 've already tried the search tool but didn‚t find any thread that can gieve me an answer.

I just bought a used 2002 Xterra SE about a month ago. It has 50K miles and last weekend I made the 50K miles service. I found in the manual that you have to change the A/T fluid every 25K miles but the car history doesn't say if it was performed at the 25K.

A friend of mine told me that if I don't know if it was changed it was better to leave it that way and don't change it. The reason he gave me is that with time, the fluid gets more thin and the transmission starts to work with thinner fluid and gets used to it, so when you change the fluid and put in one more dense, the tranny makes the changes erratically and gives you a lot of trouble.

I would like to know if that's true or if someone has already lived something like this that can give me some advice.

Thank you very much in advance for your patience reading this long question.

greetings
JP

This is my opinion - The transmission fluid is the blood line that lubercates and cools the transmission, if the fluid has not been changed since new I would take it to someone that can POWER FLUSH the entire system, not just drop the pan and replace the filter and fluid. I just bought a 2004 se supercharger with 56,000 miles and the first thing that I had done was power flush the tranny. I don't know if it was ever serviced but peace of mine says that it's now been taken care of. One of the most neglected components of any vehicle is the trans until it's to late, then who wants to pay 4-5 grand for a replacement.