[Christ]

Originally Posted by busypaws

Better/smaller fuel tanks. I have a 16 gallon tank on my PT and have never put in more then 12 but have run out of gas and put in 12.5. I have never put more then 10.5 in a 13 gallon tank on Mazda Protege. By hypermilling I fill up my 13/10 gallon tank every two months. That means for 1 month I'm hauling around 5-6 gallons or 36 lbs.

SO are you saying that if you had a 10 gallon tank you'd fill up with 10 gallons? Or would you only drive for 8-9 gallons, then fill up? See what happens?

Why not just use more of the fuel in your tank before filling up? 36lbs is really nit picking when it comes to efficiency, especially if a large percentage of your driving is highway.

Also, if you fueled up after, say, 12 gallons of the 13 you have, you'd be stopping at the fuel station 20% less, saving you time and fuel economy (less stops to make).