Transmission Gear Slipping problems of the 2009 Nissan Altima

When driving up a grade the engine rpm goes up to almost 4500 and the car slows down. Car does not accelerate on interstate consistently when merging into traffic. This makes the car dangerous because when losing acceleration I was nearly struck from behind. I had just taken the car to the dealership for the problem and they changed the transmission fluid 10000 miles before it was due. I was told that the fluid would degrade from the car sitting and ageing. If that is the case the fluid in the new cars on the lot is degrading while waiting to be sold. I researching problems for the 2009 Nissan Altima cvt transmission problems I am not alone with similar complaints and lack of dealership remedy to the problem. I talked to a Nissan factory trained tech. And ask him if this problem is why Nissan tightened up the transmissions starting in 2013 and he acknowledged that was the reason. Slippage is the only reason that the epa mpg estimates for 2013-2015 vehicles are 7 mpg greater than previous models. Nissans answer to the problem is to extend the warranty on the transmission from 60000 miles to 120000 miles. That is fine and dandy, but that does not remove the danger of a rear end collision that can kill or severely injure families when the car does not consistently accelerate when the driver has a reasonable expectation it will. The car has also failed to maintain a steady speed when the transmission starts slipping. Please help with a recall before people get killed if that has not already happened.

I bought new 2009 Nissan Altima from the dealership. The transmission has been slipping when the car starts driving since day one. I was told in the dealership that this is a cvt and it's working that way. My transmission needs to be replaced now at 62000 mi and the warranty is over. I did a research on internet and found out that many Nissan owners have the same problem with the cvt transmission.