I guess the problem I have is that I see a lot of variables by only stopping at the first click off. The angle of the nozzle in the filler neck will change the height of the fuel that is required to trigger the nozzle. Also, unless the fuel station has variable speed turbines in the tank, the number of diesel fuel customers at a given time will affect the GPM of the fuel being dispensed, which in turn affects when the nozzle is triggered. I don't mean to argue, as it obviously seems to work for everybody, but I don't see how filling up until the fuel reaches the TOP of the filler neck each and every time wouldn't work. This method FILLS the tank to the same spot EVERY time. To say it doesn't is like saying filling a Pyrex measuring cup to the 16 oz line isn't giving you 16 ounces each and every time.Sent from my DROID X2 using Tapatalk