Now I know where empty is!

I designed and built solid state regulators specifically for the rally inst' panels and serviced/ renewed those 3 post gauges for more than 8 years. It all began with running out of gas. The car rolled to a stop in a very dangerous position, left rear corner hanging out in rural highway, around a blind curve no less. Very lucky that it didn't get hit.
This is the third one of these cars that I have owned and by far the nicest. All of them had the same gauge issues, so not the first time I ran out of gas. And I was headed to the gas pumps every time it happened. Of course nicest ever landed in worst situation ever. That day I decided this will be fixed! Months of determination came from about 40 minutes of panic trauma.