Not sure why Dodge is being discussed? This is for a 2008 Hyundai Entourage. As mentioned in the title. So maybe the calculations would work more in my favour?
The GVWR for the Entourage is 2675 kg The load index is 102
they picked the wrong vehicle based on your profile...but the vehicle itself is mostly irrelevant...the numbers given apply just the same.
what is the max PSI given for the Entourage...simply replace that number for that vehicle if it is different...you'd still be down 660 lbs because of the load rating, assuming you ran max PSI...max PSI may be good for fuel economy, but don't expect a smooth no bump ride.
![Tongue :P](https://www.autos.ca/forum/Smileys/CarTalk/tongue.gif)
also, i'm not sure how the tires would wear if at max PSI all the time.
as has been mentioned before, most tire shops will not install tires below OEM spec...aside from load rating, and % dimensions (usually need to be within 3% spec), some won't even do speed rating reduction (but that may be done within reason).