To get an accurate reading, you'd actually have to graduate the dipstick, starting with an empty tank. You'd add five gallons, dip the stick in, and then notch the stick at the fuel level. And you'd repeat this process. Not all tanks are the same shape or dimension.
It depends on what the yardstick is made from.
Jet fuel weighs 6.8 lbs per gallon.
Diesel fuel weighs 1 gallon
a yard
How much energy is in one gallon of gas, compare this to quantity of energy in one gallon of rocket fuel, voila, your answer!!!
Based on Type 2 diesel fuel, one Imperail gallon of fuel will weight 8.93 lbs
1 Gallon or Nitro Fuel
Too much
60
1 Gallon of gasoline weighs 6.152 lbs.
1 GALLON
About six pounds.