When we first got our Ford stationwagon, it ran fine, and then winter cam along. As the weather got colder, it became harder and harder to start the car, and on really cold days, sometimes it would not start all all. Somehow, we made it through that first winter, and when spring came the car started up just fine again. The next fall, I started researching what might do that, and I read that ethanol gas can make your car hard to start in cold weather. I started using the non-ethanol gas, and the car would start just fine. So, all winter long, that is what I used. It cost more than the ethanol gas cost; but it was worth it to have the car starting right up on cold days. Now, I put a tank of that in every now and then, summer and winter, and always in the winter; just so it will run better.