I just purchased a 2020 Sahara JKU with the 2.0 engine which is my wife's everyday driver. The engine is nice and smooth except for when you first start it. It has a bit of a rough idle until you put it in gear. It's not bad but noticeable to me (not my wife!) After that, it runs smooth and will idle smooth once warmed up. Has anyone else noticed this on their 2.0? Only have 400 miles on it so far.