[Corona1994]

My rod bearing recently went out on my 2015 FRS. I took to the dealership so my warranty could cover, as I'm still under the 60K warranty. The dealership took a look at the car and decided warranty won't cover because they said it was low on oil and it was a cause of neglect. I did an oil change about 3K miles before the incident, and Toyota says the car only had 3 quarts of oil. I tried fighting them on it and told them it's not normal for a car to burn half its oil capacity in just 6 months or 3K miles. They still refused to cover. I asked them to tear the engine apart and determine the real issue. They found that my timing cover had a leak but said the leak was too slow to be the issue. They called back and they didn't need to tear the engine apart to determine it was my fault. I'm convinced it could've been a bad piston ring. Especially since the day after the engine went out, I put my stock headers back on and found oil residue inside the actual header itself. The car never threw any codes, not even when the engine started knocking. Nor did the low oil light go on. Is there anyone who has some sort of advise to help me out here? Or maybe someone has gone through the same issue. Any advice helps, thanks!