Well..that's what the Nissan dealer said.. acutally 2 different locations.. they said every 30k the cvt fuild should be replaced... I have not seen that on the manual but I have read online that it does..The manual says to change CVT fluid at 30K? That's a new one here. The ongoing wisdom has been that no change is required at any specific mileage, and that the proper way to determine if/when it's needed is to have the dealer do a specific test (which many of them have never bothered to find out about) to check for contamination.
We have conflicting information here. I will say this: a CVT fluid change at 30K makes no sense at all. Synthetic lubricants don't need changed at such short intervals in normal service. I don't believe your dealer if that's what you heard from them.
If you would please confirm the year of your Murano and cite the page in the manual which has the 30K recommendation, I'm sure many here would like to check it.
07-08: When Should I Drain/Refill or Flush My CVT Transmission? - my6thgen.org - Maxima Forum