I once ran out of fuel in a new boat with a computerized fuel gauge. A dangerous situation in a boat. Basically, the size of gas tank and the ... float-based fuel level monitoring systems are ...

Some drivers see their car’s fuel gauge as a nagging parent ... that the fuel has reached the reserve level, which is about 10 to 15 percent of your tank’s total capacity.

or to purchase an external gauge from a home repair store. These work by using the tank's internal pressure to measure the ...