J just8420 New member Jul 29, 2009 #3 fill your tank write down millage drive till empty refill tank write down gallons pumped and millage at refill divde how many miles you drove by how much gas you pumped ex if i drove 250 miles and pumped 12 gallons i would be gettin 20.8 mpg's
fill your tank write down millage drive till empty refill tank write down gallons pumped and millage at refill divde how many miles you drove by how much gas you pumped ex if i drove 250 miles and pumped 12 gallons i would be gettin 20.8 mpg's
