I blew my motor a few months back in My E46 M3. I got to block replaces and the head read done and all that good stuff. I drove it home that day and it smelt a little weird. But I didn't think of any thing bad cuz it's a fresh motor. Later down the road I found out it is leaking oil at a slow drip. I check the oil leave every other day and it's on good leaval. What would happen if I Keep driving it like this and Hopfully I can get the guys who put it on for me to fix it for free.... Help me out thanks.!.