Fuel Gauge Sending Units compared

Dana67Dart said
Keep a gallon in the trunk.
My old Spectra would read full for 3/4 of the tank. Then it would read 1/2 then 1/4 in about 50 miles then show empty. And you best be near a gas station

I have always kept 2 to 3 gallons of gas in a can in the trunk. I probably always will