Well, the alternator probably wasn't it. All the did was replace fuel, and it started right up.
He had a quarter tank when his car wouldn't run anymore, so it's not like the gas was old or anything.
What I don't understand is why they told him he had fuel system issues and not to accelerate too hard, but apparently they didn't tell my boy what the problem actually was. And they "fixed" it by replacing fuel? I'm gonna hafta guess that a bad fill-up was all that did it, and nothing else. I dunno, just smells fishy