I have been driving my new 2016 civc 1.5 turbo for about a month now. Every time I get above 45 miles an hour and hold the speed constant the RPM bounce up and down about 100 RPM. As soon as they are Up then they go Down, as soon as they are down they go up. It is like the car is not sure if I am going to accelerate or slow down. Same thing happens on cruise control. The speed stays the same, but I feel a slight surge of power and then slow down. It is slight but annoying on long trips.