I have 2 Altimas. The first is a 2007 4 door w/ 65K, purchased new in 2007. No issues w/ the CVT. The other is a 2008 purchased new in 2009. Just turned 80k and no problems with the cvt. Service is called for @ 100,000 miles.
My mother has a 2007 Altima 2.5L with CVT and it is trouble free at 90k miles, original CVT fluid. I will get the entire fluid capacity exchanged at 100k at the dealer.
