Approximately 24 MPG highway. Yes, you may see 30 MPG on the trip computer, but it is well documented that this figure is inflated by 18% on these earlier vehicles.
See link.
~ 24 MPG
My 72 Monte gets 15 mpg.
the sticker on mine says 19 - 28, it depends on how it's driven though
There is no such thing as a 2009 Monte Carlo
3.1 LS 20-29 3.8 Z34 19-28 With a light foot, better mileage can be achieved.
I had that problem on my 2003 Monte and all it took was replacing the gas cap. Cheapest place to start try it first. Good Luck
The fuel pump is located inside of the gas tank, you must drop the tank to get to it.
The fuel capacity of a 2000 Chevrolet Monte Carlo is 17 gallons.
in the gas tank
bad gas get octane booster
17.1