how much air pressure for air bag suspension?

I just purchased a 05 tacoma v6 with air bag suspension. It has an valve stem behind rear lic. plate. How much air pressure should I keep [max]-[min]?

 

I would think you only put air in them if you have a heavy load.

 

Must have minimum of 5 lbs. of air press. if you have firestone air bags.

 

much?

 

whats max i can have?

 

I installed Firestone Ride Rite air bags on rear suspension and it is the best suspension upgrade one can do. Works fantastic and can now actually haul a load without having the truck bottoming out. Bags need minimum of 5 psi, max is 100 psi but you will never need more than 30 psi for a heavy load.

 

8 years later... is it bad for your suspension to have your bags at say 50 psi while carrying lighter load?