The Squirt formula certainly did change since the 60s, when I first drank it. It used to contain grapefruit pulp, and it was definitely a grapefruit/orange flavored drink. Now there is no pulp, the carbonation is sharper (like 7up) and the flavor is less grapefruity, more "generic" citrus (again leaning toward 7up). I don't *like* it as well now, for two reasons -- I prefer grapefruit flavors, and if I wanted to drink 7up I would buy that instead -- I regret the passing of niche products (whether sodas or recording artists) to mass-consumer tastes.