I haven’t started my pro charged 97 cobra in a few weeks... started it up today and it ran for about 10 minutes then heard a pop... and it stalled... still turns over but didn’t want to start... it is below -0 today here and the gas has been in it since October, could it be I need a fuel treatment? Moisture in the gas? If so what’s a good brand? Thank you. Ps... it’s never stalled before... I’ve owned it since May of 2020 so I’ve never tried to let it run in this cold of weather before.