An engine relies on two things to run: spark and fuel. Sure, there are a million other things to consider when speaking of engine operation and power, but regardless of the type, size, or brand of ...

See if this sounds familiar—the gas gauge on your hot rod reads full seemingly forever then the needle suddenly plummets to E, usually after you've gone a few miles past an offramp to a convenient gas ...

Fuel gauges are fairly simple mechanisms. They point to “E” when the tank is nearly empty and “F” when it’s full. At least, until it doesn’t. Then you’re left in the dark, guessing how many miles you ...