alternative to red fluid fuel gauge?

[Ricosan]

I know this is probably a stupid idea but has anyone used red dye? It’s available everywhere and reasonably priced.
Richard

[Ken/Alabama]

Originally Posted by Ricosan

I know this is probably a stupid idea but has anyone used red dye? It’s available everywhere and reasonably priced.
Richard

I think it has to do with the specific gravity of the fluid.