My car is 2010 with less than 40,000 miles. Took my car to get an oil change, technician did not tighten oil plug correctly. While driving, oil plug came out, thus my car ran out of oil and now I need a new engine. I have contacted the company, but I am getting the run around about receiving money to repair my engine. They want to replace the engine themselves, but it will void my powertrain warranty with car manufacturer and I do not trust them to fix it correctly. What are my options in pursuing legal action against the company?