Am owner of a 2013 Sonata Hybrid as of this past July...car has been great so far. Averaging about 40-42 mpg during the last couple warmer months. As of recently, mpg's have plumeted to around 33-35 mpg. I have read on here that mpg will fall due to cold weather and gas engine has to run more often to heat the engine, etc. I understand that but is it really that big of hit during cold temps. It's been in the 30's and 40's lately so if it gets really cold, will it drop even further? Mileage on the car is 39000, got it with 33000 so engine is still in tip-top shape. Keep tire pressure at 35psi and am not heavy on the gas pedal as I like to see the Green EV light on often as possible.