Okay, I have a 1994 Trans Am, Well two days ago my mom drove my car and it needed gas, She went to PayLess Gas station, I always get mine a Exon, And she put 83 Oct. and I always run 93. well now my car spits and studders so i put a new fuel filter on it because the other one was getting pretty bad and now it seems like it is worse then ever you cant give it gas or it will die, and its usaly idels around 1 G and now it is like at 300 and it isnt the fuel pump do you think it might be the gas or what?

 

I think I'd start by siphoning out all that gas and filling up with the good stuff, then see how it runs.

Dave