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I have always used the 10% rule when it comes to tire inflation. It has worked well for me. My guess is a tire would suffer worse wear if jacked up to maximum psi on an empty truck especially in the back. The Max psi are for max loads and running empty you are not even close to that. Some people use the chalk method but that really has never worked well for me with an e rated tire. Toyo has a nice chart to tell you how much psi to run based on tire and needed capacity. Safest thing someone can do is go weigh their truck and weigh front and back axles and go from there.Lowering your tire pressure might/might not give a noticeably softer ride, but it could cause faster wear and reduced steering capabilities. Lowering tire pressure will also increase the amount of time rubber stays in contact with the road, increasing heat build up in the tire. A top reason for premature tire wear is improper inflation.
yup have to dumb it down for the least capable thinkers among us.I don't know how you guys can run lower than 70 psi in rears, cause one of the software "upgrades" throws an alarm below that. Previous software was 60 psi. The official FCA reasoning was "truck is designed for that".
My ass - the lawyers mandated it to dummy-proof from owners forgetting to air up when loaded.
yup have to dumb it down for the least capable thinkers among us.
Corp isn't concerned about intellect - they're concerned with keeping their loot from us.
I don't even know what AlphaOBD is, much less know how to turn off alarms. Proliferation of electronics has overwhelmed me.
I hear ya on the electronics. I used to like techy stuff, now I want to throw it against the wall.
Alfa Obd is an app that you can use with an Obd plug and unlock cable which allows you to access settings in your truck. Unfortunately it seems I can't change much in my 2019 but turning off the tire pressure alarm was one thing that worked.
I hear ya on the electronics. I used to like techy stuff, now I want to throw it against the wall.
Alfa Obd is an app that you can use with an Obd plug and unlock cable which allows you to access settings in your truck. Unfortunately it seems I can't change much in my 2019 but turning off the tire pressure alarm was one thing that worked.
I don't know how you guys can run lower than 70 psi in rears, cause one of the software "upgrades" throws an alarm below that. Previous software was 60 psi. The official FCA reasoning was "truck is designed for that".
My ass - the lawyers mandated it to dummy-proof from owners forgetting to air up when loaded.
Wasn't FCA that did it, it was the Feds. Due to TRA lobbying, the FEDS mandated that TPMS must be set to trigger at the minimum tire pressure required for the rated axle load of the truck. (i can't remember if the allowed deviation is 5 or 10% below that number). At the time the FEDS were debating the rule, both FCA and GM argued and showed that over inflated tires for the load increased stopping distances. TRA and the FED position was that the increase in stopping distance unloaded was less of a safety risk than the blow outs caused by an overloaded tire for the pressure (Think the Ford/Firestone issue). As such, starting around 2014 all TMPS are required to be set to the tire pressure required for the rated axle load. So you get stuck with the ~70psi rear trigger point.
Do to this law the ability of a dealer to modify the trigger point was removed from the diagnostic software the dealer uses so they can't change it. Software like AlfaOBD can modify it though.