how much gasoline does a 5.0 pontiac firebird from 1983 consume?”
I’m not finding detailed specs on the Firebird, but the V8 Camaro from that same era (very similar) list 16 – 17 mpg in the city and 25 mpg on the highway. That’s probably very close to what your Firebird is likely to do. Of course, mileage is going to vary a bit from car to car depending on how well it’s maintained, the kind of fuel used, etc., but 16/25 mpg is probably very close to what you can expect. I hope that helps!!
