this little thing should get in the 30's on gass milage. first, fill it completely,in the morning . check the milage ,and write it down, then drive it and fill it up in the morning again,in a few days, ,and check the milage and compare the milage and divide the amount of gas you used in it. and it should be in the 30's if the engine is in good shape and you hve an automatic over drive trans.