A) moper is not a professional. I might be better than some, but I earn my mortgage money wayyyy out of any automotive industry.
B) tech posts are all about respectful debate (if and when possible...lol).
C) argue and disagree all you want. You have the problem and ultimately the solution in your garage. Closest I come to your problem is an old HP laptop in my living room.
Last comment - new doesn't mean good. I know you like the way it runs, but the fact it ate its dipstick tells me there could potentially be other issues the builder overlooked.