The engine failed at highway speeds on approx. July 15 2024. Filed a claim with GM. GM replaced minimal engine parts to get the car running. GM refused to acknowledge this was a safety issue. Engine failed at highway speeds again approx 09/20/2024 this time just shutting off. When the engine oil was drained at the dealer it was silver. The entire engine was replaced this time. Again GM refused to acknowledge this was a safety hazard. After engine replacement the low oil light came on at the time of an oil change. I am monitoring oil burn on this new engine.