I changed the oil in my Accord Hybrid today and immediately I noticed strange behaviour, the AutoOff feature doesn't want to come on for some reason. I drove the car around town all day running errands and never once I saw the AutoOff come on. This completely baffled me, I know Mobil1 is very good oil, you can't go wrong with it and I also noticed the engine is running cooler than normal. After a day of driving and many attempts to pin point the problem, I finally draw a conclusion: the Mobil1 Synthetic oil did such as good job at reducing friction, as a result the engine is running cooler than normal, and due to that the HAH is miss interpreting the is in the warm-up process, hence, the AutoOff never come on. What do you guys think? Any suggestion?