Ford dummy oil gauges read on or off. If you have more than a set amount of oil pressure (think it's about 8 or 10 psi) the needle will sit nice and pretty in the middle of the "gauge" (so they call it), but if the oil pressure drops below that 8 or 10 psi, the needle will drop to the bottom of the gauge and indicate low (which means really low because 8 to 10 psi is not all that good).
So, let's extend this "technology" to the fuel gauge. So as long as you have more than say one gallon of fuel, the needle will sit in the middle of the "gauge" and look nice. Once your tank drops below one gallon the needle will fall to the bottom of the "gauge" indicating you need to stop for fuel. Nice, eh?
So, let's extend this "technology" to the fuel gauge. So as long as you have more than say one gallon of fuel, the needle will sit in the middle of the "gauge" and look nice. Once your tank drops below one gallon the needle will fall to the bottom of the "gauge" indicating you need to stop for fuel. Nice, eh?