An engine dynamometer measures torque (lb-ft), not mechanical energy (ft-lb); and an engineâs âtimeâ is expressed in revolutions per minute (rpm). Since 6.28 ft-lb of work is about equal to 1 lb-ft of torque, you can substitute the eqautions in Figure 2.
DEF weighs approximately 9 lbs per gallon. Compared to diesel fuel at approx 7.05 lbs and gasoline at an average of 6.19 lbs, DEF is a relatively heavy product.ow much DEF can I haul? With DEF weighing in at around 9lbs per gallon, we estimate that with a tandem axle truck tank you will be able to haul just over 3000 gallons in most states. For trailers the capacity will be around 5,000 gallons.
One gallon of water, at 20 degrees Celsius, weighs 8.33 pounds. A general rule of thumb used by cooks is A pint's a pound the world around.. There are 8 pints in a gallon and a gallon weighs about 8 lbs. A pint is not exactly a pound but unless you are dealing with a lot of water it won't make much difference. As stated above a gallon (8 pints) weights 8 1/3 lbs. 3 gallons (24 pints) will weigh 25 pounds, 1 pound more than you would expect.