62Blazer
Senior Member
So final comment on this subject. Not trying to weasel out the theory by any means, but some clarification on my thoughts. If you look at my posts I specifically said the pressure does not change "significantly", and followed up by stating that I did see a small pressure change in my test. This is because the volume does not change significantly in most cases. Think about it....the truck sits "level" with no weight on it. You hook up the trailer and inflate the airbags to the truck still sits "level". Well, the volume of the airbags is the same in both cases regardless of how much weight is on them. Weight and volume are not the same thing.