It's time to drain/refill the CVT fluid in the wife's 2011 Rogue. In the past I had this service done at the dealer, but it's a pricey service for what amounts to something no more complex than an engine oil change. Just about every brand of fluid claims NS-2 compatibility. The factory fill is ridiculously expensive, 2-3x as much per quart as Castrol, Mag1, Lucas, Valvoline, etc. Amazon reviews for Idemitsu CVT fluid claim it's Nissan NS-2 factory fill in a different package, but I'm not one to blindly trust an anonymous Amazon review. Amazon is not really the best place for this sort of info. Anyone have experience with any of these brand? Good experiences? Bad experiences?