Oh and also, it's not true ALL new sending units are junk. Spectra makes fine products. They are located in Canada on North American soil. They make quality products including sending units, gas tanks, radiators and heater cores.
The quality may be fine but the reostat is not set to the shape of the tank and the gauge.
As for reading good at empty... I would rather know when I have 1/4 tank accurately, (4.5 gallons, about 60 to 70 miles) that gives me time to find a gas station.
