hippiesara

I have a 98 subaru outback legacy. Just recently I went to start it and it won't run. It's turns over fine and wants to run but just won't. At first thought it was some really bad gas (because I just filled up my tank) so I checked the fuel filter. Fuel filter is fine and so is the fuel pump. It's been running great, no issues or any sign of trouble. Anyone have any suggestion.