Why does my automatic car jerk when I accelerate and slow down?

I have a 2012 Honda civc. I just got this car about a month ago from a dealership. I can't remember if I had this problem when I first bought it, but I have defiantly noticed it the last couple of weeks. When I accelerate (even when I do it gently) it jerks, it's not a huge jerk but it is significant enough for me to notice it. Also, when I slow down it jerks like 3 times. Not all the time though. My dad checked the oil and he said that it had very little. But On my car, you can see the oil life and it says it's at 90%. Also, there's a sticker that says I don't need an oil change until like 3-4,000 miles more. So I'm not sure if my dad just checked it wrong. Also, since I put the Eco boost on, I don't know if that somehow affects it. I don't know. Please let me know what I need to do.

P.S There are no lights turned on my dash board.
Also I have nitrogen gas filled tires. What does this mean and where do I fill them up.

Added (1). I also have an EX-L model.

The car might have an automatically shifting manual transmission which are known to shutter when switching gears. It's not a problem it's just a cheap design. And two- filling your tires with nitrogen will supposedly keep them inflated longer, the idea is the nitrogen molecules are bigger than air and therefore will not escape as often. A mechanic can refill it for you, but if it costs you extra, i wouldn't recommend it. It's only worth it if the tire is filled with 100% nitrogen, and most places don't have that high of a percentage.

Honda Civic. BOTH the brand AND the model names are proper names and must be capitalized. What does motor oil have to do with the transmission? BUT I'm HORRIFIED to a HUGE level that the engine does not have the required amount of motor on and YOU think it has to do with the oil change! HORRIFIED., Does any one in your home not know the difference? OMG, this car is going to be junk in short order. You have no clue. GO TO AN AUTO REPAIR SHOP AND TELL THEM TO ADD OIL AND TO CHECK THE TRANSMISSION. Otherwise, you are not educated enough as to cars to own one. Get EDUCATED. Read the car manual. Oh what a sad ending for this car.

There's no need to behave defiantly, that's VERY childish.

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