I have a Ford Taurus 2002 and it's in bad shape, I know that. The internet says it should have 18 gallon tank and 20 mpg city. My math would be 18gallons X 20miles=360 miles for the tank before needing a refill oif all good. But I figured I've driven about 78 miles the last 3 days and have had to put in about 42 gallons of fuel in it. Am I doing the math wrong or do I really only get 1.85 miles per gallon from the car (78miles/42gallons=1.85mpg)
Read more: Am I doing the mile per tank math wrong?
