i thought the many name brands had additives for the winter months, but my concern is really with the no brand discount service stations
Technically, dry gas is either a cheap alcohol. like methanol or has ether additives. NEVER use it in your car. ALL gasolines get additives to prevent fuel line freeze. Fuel lie freeze is TYLICALLY started because of the presence of WATER in the fueel, not the gas. Gas does NOT freeze until WAY below zero!!! Use a good FUEL INJECTOR cleaner additive like GUMOUT once in a while, and NEVER use that anti-freeze junk. It can RUIN your fuel pump and fuel lines and cause REAL trouble on down the line!!!
Most gas dryer additives are based on alcohol, and most gasses used these days have a percentage of alcohol already in them. So most gas that you find already have the dryer additive in them.
