A gallon of water is about 8.3 pounds, a gallon of gas is about 6.25 pounds. A full tank would be about 200 lbs, no more. Agreed, the truck should be about 5300 plus 200 plus 200 (5700).

 

a gallon of gas is 7 pounds, i race cars and if the gas tanks isnt as full as possible we will be under the minimum weght, gas is 7 pounds a gallon

 

water is heavier than gas, gas is like 7 lbs a gallon. and that truck doesnt weigh that much, i had a super duty F250 with 3/4 tank, me (185) amd ext cab 4x4 with the 5.4 on the scales and it was only 6270. 04 f250 btw.

 

Come on Dian, please tell me more about your 6500# truck....

 

And I will.

Go back to the first post in this thread and read my results. I spent 3 hours of my time today getting this all sorted out.

It was worth my time.

It might be worth yours to read it.

 

I believe that is the GVWR, and that is what your truck is able to carry full of passengers and/or cargo. it is probably throwing off your hp estimates

 

Read the first post again. I had it weighed today.