At this point I'm inclined to believe Subaru that they reduced the internal friction on this new motor. When I had my Legacy with the EJ it warmed up fairly quickly. When I switched to synthetic it took longer to warm up. Well at 32 degrees out this morning my heated seat was warm long before the car was really blowing warm air. So to counteract I need to let the car sit there and warm up longer (more fuel) in the winter. Its the first time I've actually considered getting the remote start so I can fire it up from inside the house.