I bought my 2012 Legacy 2.5i Premium with CVT in January. I have almost 15k miles on it.
Yesterday - and I know I shouldn't do this, but maybe it contributed - I got gas and filled it up a few times after it "clicked" for me to stop filling. Nothing leaked on the ground but it could have been close.
Today, drove 90 miles to work and 90 miles back. Highway driving. Stopped at home to drop my stuff off and drove 4 miles to the grocery store and in the parking lot, I felt the car feel like it was going to stall (imagine driving stick shift and not hitting the clutch at a low speed, it shakes, until it stalls) and the CEL blinked for less than a second, and then all was normal. It did NOT actually stall but shook as if it was going to.
Any ideas, or maybe just overfill/bas gas? Gas was from Sams Club, which is a high volume station. Never had issues from their gas before.