I have a question, I recently got my engine rebuilt, only had it back for 4 days, I was going down the interstate when the oil pressure dropped down to zero and then it started knocking, we got it towed back to the shop, where they took it apart and said that we had spun a bearing, but they told me that the only way that I could have did this is by spraying it with nitrous, This car has never seen nitrous, can you tell me if the oil pressure dropping caused this (oil pump went bad) and is there a way that I can prove nitrous did not do it, thanks for any help!!!!!!!!!!!!!!!