I get around 25 City and almost 30 Highway
The highest mileage was provided by the Pontiac Grand Am Regular and it gave 32 mpg on the highway and 21 in the city.
23
The gas mileage for a Pontiac Montana will vary depending on where you are driving and speed. The average is 18 mpg city and 25 mpg highway.
Gas Tank
21 gallons
About 20 for a manual trans in town.
Premium (91) is recommended
About 17 mpg (city)
It would do just as fine on a Trans Am as on any other car.
Gas mileage is between 55-60 miles per gallon
Need to know the year and engine/transmission info