Thanks again. The bought the Pathfinder new in 2002 and had the original Transmission fluid changed by a local garage about 3 years ago or about 35K miles ago. I'm not sure exactly what the garage used. They are very reputable but local garages typically don't go out of their way to use dealer parts such as NissanMatic D. I'm assuming they probably used Mobil 1, or Valvoline or another respected brand. The Pathfinder now has about 125K miles on it. I just figure that it is probably due to be changed again.
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