I think I read somewhere on this forum that a Honda service manager suggested that the unexpected oil change with limited ICE usage had to do with the Maintenance Minder which foresaw required tire rotation and the routine 'check fluids, brake pads, etc.' based on mileage or time, and then it adds on the oil change so that it is taken care of at the same maintenance visit. The idea is, the system is trying to limit the number of times it tells you to schedule service -so if your tires need to be rotated within a month, and it anticipates an oil change in 3-4 months, it will group all the imminent service items together and thus save you from having to book so many service appointments. At least that was what I recall was the rationale. If true, and I do rotate the tires myself during the snow tire / all season swaps twice per year, could resetting the Maintenance Minder for the tire rotation (flag '1'?) and also looking after the items under the '0' flag (check fluids, brake pads, etc.), then presumably this would quiet down the Maintenance Minder and maximize the time before it requires an oil change. Just guessing. Have people that swapped snow tires or otherwise done their own tire rotations reset the Maintenance Minder for that service? I believe the method is spelled out in the manual, but I don't have it in hand. I hope to swap snow tires on in the next couple of weeks, and will attempt to reset that service on the minder.