Full tank indicator

[nookandcrannycar]

Originally Posted by WeeYari

First click is the closest to published fuel capacity.

If you fill to first click every time, and properly divide distance traveled by fuel top up amount, there is no way your calculations can be off. The only variable in the equation would be the sensitivity of the shut off on the gas pumps. That is why for truly accurate calculations it is recommended to, as much as possible, use the same station, same pump whenever filling the tank.

There have been some past threads, which IIRC included CTScott weighing in on this, indicating that there are some things that can cause 'the click' to not happen at the same point/place every time.