I have a breach of warranty question involving an automaker

I bought a new car last year, Dodge Dart and after a couple of months of purchasing the car, it died on me as I was driving without warning. After several minutes, I managed to start it again and took it immediately to the dealership and they claimed that the problem was that the factory did not fill my engine with sufficient oil so I was very low and the car sensor detected it and shut it down. I then had another recurring problem this past weekend and took it again to the dealership and was told by one of their customer service reps that he knew exactly what the problem is and that I would require a new engine. Chrysler denied the claim and told me that I would need to add oil every 1,000 miles and they refuse to fix it. In other words, my car can die on the freeway at a moment's notice and a terrible accident, which can cause death, can occur and they refuse to fix it. While doing on-line research, I saw many complaints posted from other individuals who had the same problem.