Get rid of half the tank, a full can of SeaFoam and a refill with the best premium you can find and you should be all right. Just make sure when you get it fired up, run it long enough (at least half an hour) to get the SeaFoam into the engine. A stuck intake valve from bad gas is a real bummer.

"We live in a time when intelligent people are being silenced so that stupid people won't be offended".