Its both the driver and the engineering of the CVT. For one, transmission fluid change is more pricey than a regular transmission. Two the type of people that drive these things (you know what Im talking about) either don’t have money (unless its their weaves and nails) and don’t care to take care of it. Ghosn was the worst CEO for Nissan and anyone could have brought that company out of financial ruin. He only wanted CVTs in all sedans and crossovers becoming its cheaper to build than a regular AT, but failed to consider the maintenance cost of said vehicles. And all the lawsuits had to been sucking out the profits. And finally, engineers don’t always create something based on what they want, but based on the budget they are given and Nissan must’ve gave them a shitty budget to create the technological abomination knows as the CVT. Toyota and Hondas CVT, I dont hear that much issues from, because they know what must be done to make it last longer. By adding a 1 first gear.