Been reading about the oil level engine issues on this site and I'm not the biggest motor geek in the world. If I have spun a bearing rod, what sign/noise/whatever would give me a clue. Dealer just checked the oil problem and says it is rings which I don't buy. Didn't say anything else other than maybe some lifter noise. Basically said check oil and add when needed or worse case could give me a new motor for 4K.