This is my follow up to my earlier post. My car now has 55,000 miles on it. So I brought the car into the dealership. They said I over filled my oil and had to drain it. They said oil has spilled into the spark plugs and so they had to replace the spark plugs. Total spent= $80. So, I said well this doesn't seem bad. Took it home and it was jumping on the highway, same symptoms. I brought her right back and they took a look at it. Had to keep it overnight. Ready for pick up the next day. They said it was the coil pack. I don't believe they replaced it, but they said there was some rust or damag