Well, I looked at it, 4 techs looked at it, and the Honda rep looked at it. All ha the same conclusion. Nothing wrong. I still have no explanation for the sparkling oil. Yesterday I put it back together, cleaned the machine, and filled the sub transmission with new Honda oil/Lucas oil stabilizer. I also filled both diffs with Lucas 85w-140. After doing so I drove the machine without the floor, doors, or new heat shields installed. Although it still makes the noise, it is much quieter. While mine was apart I drove a 2017 P1K5 only to heats the same noise. The only thing I have come up with is that after the dealer installed the new heat shields the sound came from a different area which caused my wife to notice it more. And after she continued to remind me of the noise I just thought started to think something was actually wrong. The noise is in fact normal and apparently I just didn’t remember it from the previous year. So after it was all said and done I am relieved that there wasn’t anything wrong. I just wish I could explain the dirty oil after only 200 miles. I am also very pleased with the help from my dealer and the fact my bill was only $153 with the gaskets. I feel that that was more than fair given the amount of time spent and number of techs involved. Although I really don’t use the service department much do to the fact that I am capable of doing my one work provided I have service information, I would recommend River Valley Power and sport of Redwing Minnesota to anyone.