What does your car say when it's running low on fuel?

D2 has a yellow light, it comes on a lot. Calculations have shown there's something like 10 litres left at this point or not very far. D1 had a light when it left the factory but I've never seen it work.
 
Basically that's a wire wrapped around a board and where it makes contact the resistance is different, right?
Yep. And it seems like right now the contact is none and the resistance is "all of it".
 
My bike's fuel light kicks in when the tank drops to half, so practically speaking it tells me to go fuck myself. The best gauge I have is tapping the tank or waiting for it to sputter out while I am riding up a hill. Still better than my old bike's tendency to die mid corner because I forgot to set the pet cock before heading out.
 
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