reducing tire pressure when unloaded

Actually we do know. Their profile says it is a 2014.

Still not a big deal. Put up with an alarm or put up with a wife who is in pain. It's a good point, so he knows going in. He might even be able to lower the pressure enough to help, without going below the alarm setpoint.

“I know what the manufacturer says, but how low can I really go?” Knowingly lower tire pressure below manufacturer”s specs, blow a tire for any reason, come into my lane, hit me and watch the manufacturer abandon you. I’ll take everything you have.

Let’s all toast to whose who thought they were safe enough! (Now living in the poor house.)

Cummins12V98 wrote:

Road Phantom wrote:
Mostly, we drive our truck unloaded, since it's our everyday beater as well. Our truck is a Ram 2500 reg cab 4X4. How low can I safely lower the air pressure to improve the ride for my arthritic wife?

Sorry but your 2500 will set off an alarm when lowering! 3500’s not a problem.

Without knowing what year it is, how can you say that lowering the air pressure will set off an alarm. For all we know this is a 2000 Ram.

Road Phantom wrote:
Mostly, we drive our truck unloaded, since it's our everyday beater as well. Our truck is a Ram 2500 reg cab 4X4. How low can I safely lower the air pressure to improve the ride for my arthritic wife?

Sorry but your 2500 will set off an alarm when lowering! 3500’s not a problem.

To estmate the axleweight in your normal use, find empty weight and give howmany persons and about where. I then will make an estimation and add that much reserve, at wich comfot and gripp is stil accepable.

Fuelconsumption will be a bit more with the lower pressures.

The door jamb info does not answer his question. The inflation shown there is for a truck loaded to GVWR. I run there all the time, and many of us probably do.

But he needs a softer ride when not loaded for medical reasons. Nothing wrong with doing that. But you will need an inflation chart from the tire manufacturer, and you will need to know how much the truck weighs. I'm sure you can estimate that and be safe enough.

I doubt you will really feel much difference, but I understand the need to try it for yourself. If it helps, great. If it doesn't you'll just get tired of running the pressure up and down depending on load.

If you an determine weigt on axles, better seperate tires, I an able to calculate a pressure. For normal use often rear can be lower then front, as old biscuit uses. Advice on car is for fully loaded, and rear nowadays even a bit overloaded. Pressure-advice is all for weight and speed.

I have a 3500 SRW Dodge

Front Tires at 55 psi...all the time
Rear Tires at 80 psi for towing 5th wheel
**Rear Axle/tires at 6200# when towing
Rear Tires at 45 psi when NOT towing
*Truck weighs 7980# with 3120# on Rear Axle/Tires when not towing

Been doing that for 11 years.
60K per set then new tires (not cause tires are worn out but because I am anal about tires)
Tires wear evenly across thread

Look in the door jam of your truck for your tire pressure information.

ALL current vehicles have a tire pressure chart from the manufacturer on the drivers door post. Set it there. Any lower and you run the risk of overheating the tires.