Where is fuel filter please?

What is your question?

Ok my car was low on gas and started sputtering as i was leaving a friends. It was so bad i stopped got out and checked under the hood. Well i just considered i was real close to being out of gas. Well i noticed if i just eased on the gas it would go but if you got to fast it start sputtering. So i made it to the gas station threw 5 in it and tried it again. Still same results. So i figured id check the fuel filter, but unfortunately I don't know where that is can or will someone HELP PLEASE

What makes this problem better or worse?

Driving it

How long has your 1991 INFINITI M30 had this problem?

Couple hours now