My son and I both have 4th Gen trucks as daily drivers. His is a 2016 SRW and mine is a 2012 DRW. With this weather in northern Wisconsin the last 10 days we have had up tp -45 degree nights and mostly below zero days. We both plug in at night and run Amsoil ALL in ONE additive in our fuel. My 2012 starts with the remote start and runs perfectly night or day...his if it will start runs like its jelling up and we have had to have it towed to our heated warehouse to many times this last week. We replace the fuel filter and warm the truck up inside and it drives good...until the next morning. He has even added 911 to his tank and doesnt help. Any ideas?