According to /www.fueleconomy.gov, the gas mileage of a 4 cyl. 01 Ford Ranger is around 18 city and 23 highway. However if you have a 6 cyl. of the same year make and model, these figures drop to around 15 city and 18 highway. The figures listed on the sticker are MPG (city) 16 MPG (highway) 20 MPG (combined) 18. As everyone knows noone will ever get that good gas milage in actual driving situations.