2009 Cube Krom 61,500 miles purchased used at 13,000 miles.  I do not believe the car was ever used to tow large loads or on rough roads.  

Standard service  is to inspect the CVT fluid at regular intervals, which was done at a dealer.  As a premium service it recommends flushing the CVT at 30000 and 60000 miles. 

I asked the dealer if I needed to flush my CVT.  They said they did not recommend it unless I had been doing it regularly as it might cause the CVT to start slipping.  I do not know if the CVT was flushed at 30000 as that was a premium service.  If I remember right, she said something about bonding agents in newer CVT fluid could cause a problem.  

Should I risk it, and against the dealer's advice, have the CVT flushed?

I did not take the car to the same dealer over the years, would my vehicle service be stored in the Nissan computer system so I could find out if it were flushed at 30000?     

From the 2009 maintenance schedule https://www.nissanusa.com/pdf/techpubs/2009/2009_N_SMG.pdf

Standard: ❏ Inspect the following: Automatic transmission/CVT fluid

Note: Replace (not just inspect) oil/fluid if towing a trailer, using a camper or a car-top carrier, or driving on rough or muddy roads

I do not believe that note applies to my car, which does not have a trailer hitch and is not suited for driving on a rough road.   

Premium: Optional: flush automatic transmission/CVT7 (flush with ATF/CVT Fluid)