I have a 2013 Forester that I bought back in February. When I got it, it had the same starting issue that my Impreza had. Problem solved after the dealership put a shim in. Well at least I thought that was the case. On Halloween I had the EXACT same starting problem. Hasn't happened since. Being I had been in contact with Subaru I let them know. Fast forward to last week. Christmas Eve I got up and went to start it to go to work and it fired right up and within 5 seconds died. I gave it a minute and started it again and it stayed running. Every other time I started it that day it was fine. The same thing happened today. The only thing that has been different for those 2 days is the temps have been below zero here but only a degree or 2. I know it's probably just the colder temps and the crappy winter gas that Illinois has but what else could it be if it's not? I don't want to take it to the dealership and get the run around and waste my time like when I got it. And has anyone else had this problem?