[bigred90gt]

How bad is your mileage? The 94-95 have the same engine, and mileage will be nearly identical as was already stated. The 96-98, I really dont know. I had an 01 that I just sold, and it was getting anywhere from 17mpg (driving aggressively) to 22 mpg (driving like a grandpa). My 90 can do the same, so I dont really think you will be doing anything except picking up a car note.