Premium doesn't mean anything if the gas is full of contaminants and water. zip trip sounds like something I have not seen on a top tier fuel list.
to "properly" test you would want to get something like one of these here:
Ultimately you may get lucky and run this tank completely through, make sure not to get gas at the same place next time and see what it will do.
Is it constantly driving like this or does this driving like crap come and go?