Post by
kerrton »
https://forums.nicoclub.com/kerrton-u88348.html
Wed Feb 04, 2009 11:15 am
This is completely normal and has been documented TO DEATH on this forum, check the glossary for the right thread and you'll see tons of posts and the outcome basically is that this is not only normal, but was designed this way by Nissan engineers with the clear goal of providing excellent fuel economy. The engine also plays a role as Philip has explained in detail, but this is completely normal. One more thing that plays a role is the engine control unit, which as I understand it learns your driving preferences and makes adjustments to how the transmission selects gears. If you are lead footed then you won't notice this "high gear vibration" as much, because the CVT will select lower gear ratios to keep your performance high, sacrificing fuel economy. If you're like me and you drive with a very light foot, you'll notice the CVT going into overdrive very early (at very low speeds) almost immediately, and you'll notice this vibration a lot. However, as soon as you push harder on the throttle or encounter an incline, the CVT lowers the gear ratio and the vibration disappears.
Completely normal and not indicative of a problem.