I have a 2019 Outlander PHEV and I live in Minnesota. The first winter, the gas engine came on only when the temperature was 5F or lower. The second winter, it came on whenever the temp was 15F or lower, the third winter it came on when the temp was 25F or lower, the 4th winter, 35F or lower, the 5th winter 45F or lower. I understand it coming on when it's really cold, but the point it comes on shouldn't change. The battery still charges to 22 miles or so. Has anyone else experienced this? Any idea what's causing it?