Bedlam wrote:
His warranted payload is actual weight minus door sticker GVWR.
His legal payload is actual weight minus the weight he registered with the DMV.
Actual weight will not be the same as dry weight or shipping weight since drivers weigh differently and the amount of fuel in your tank will vary with consumption.
Isn't the driver's weight part of the payload not the actual weight? The vehicle may have a different driver at any given time, so that weight is variable.
Fuel could go either way so you would have to choose whether to include a full tank in the "vehicle weight" or in the "payload" and calculate accordingly.
In my opinion, I would use the weight of the vehicle unloaded with a full fuel tank for the calculation. Subtract that from the GVWR to get the payload - which would include driver, passengers, cargo, etc. From what I've understood, that is how the sticker's payload number is calculated (although the fuel tank may not be included).