gas loss with gears

[PKRWUD]

Rosco-
You don't need to know the size of your tank. To figure your mileage, fill the tank as high as you can, and write down the mileage. Drive it until you get to the point where you normally fill it up. Fill it up, and write down how many gallons it takes. Do this for 3 fill-ups, writing down the amount of gallons it takes to fill it each time. After the third time, add together the gallon totals from the three fill-ups. Check your mileage. Subtract the mileage you wrote down before the first fill-up from the mileage after the third fill-up. Divide that number by the gallon total. That is your average gas mileage. You can do it on fewer fill-ups, but it won't be as accurate. Posting this number will give everyone a better idea of where you're at.

Stang39r-
Expect to see a drop of between 2 and 3mpg with the gear change.

Take care,
-Chris