Is it really that difficult? won’t that just require a pressure sensor at the bottom of the tank?
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There’s simply no point to it. Cars generally use a float connected to a electric contact pad that depending on position gives you a voltage between something like 2 and 5 volts indicating empty and full respectively. The finite amount of voltage in between the two points is a percentage of the whole so it’s easy just do display the percentage of the tank is full of gas/petrol. You can take that percentage and estimate the amount of fluid remaining in the tank based on the maximum capacity but there’s literally no legitimate reason to do that math and there’s no functional point to having the finite amount of fuel left in the car.
Is there really any benefit to knowing you have 12.5 liter left in your 50 liter tank? Or is 1/4 tank remaining good enough if you know you can get 100 miles out of that 1/4 tank?
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