What should the PSI be in the trailer?
I have a trailer which has Sailun G rated tires. The maximum PSI of air is listed as 110 PSI. I was carrying 90 PSI but recently was told that the maximum PSI, that is 110 PSI is the amount of air I ...
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Lantley wrote:I have weighed each wheel so I know what they weigh. And I inflate my tires so the pressure is enough to carry the heaviest loaded tire. It doesn't have to be difficult if you actually stop and think it through.Cummins12V98 wrote:fj12ryder wrote:time2roll wrote:Why? If you're getting good wear patterns and no issues with running lower pressures why would you blindly follow recommendations that are based on "E" rated ST tires? "G" rated LT/ST tires don't show the "B-Ball" effect, their sidewalls are too stiff for that to happen. There's quite a bit of data that suggests there's no reason to blindly follow the "Use Maximum Pressure" suggestions. Good wear patterns, long life, not beating your trailer to death, all good reasons to run lower pressures on "G" rated tires.
The oem tires call for 110... I would be running 110 minimum.
JMO of course, and I will continue to recommend that people with "G" rated tires experiment with air pressure until they find what works best for them.
Hey there is the BLIND way to go thru life using the CYA method or one can actually use their BRAIN and do what is BEST for their situation. I prefer the latter. ;)
Max pressure is CYA. I use the CYA method because I have suffered through the blowouts from the era when I did not use the max. Pressure CYA method.
Again I do not want to derate the tire by not filling it to max. PSI.
BY the way are you filling each tire to a different pressure using those charts? Are you assuming each wheel weighs the same and carries the same/equal load?
Max pressure may be CYA, but I CYA'ed the heck out of the lousy "E" rated ST tires that came on my trailer, and I still had two of them fail.
As far as "derating" the tire, I don't need 4,000 lbs. of carrying capacity, so why use that air pressure? Does your empty truck have a very rough ride when you inflate your tires to max, or do you lower the air pressure when empty for a smoother ride? Why would you "derate" your tires like that? Or does that actually make sense? I run lower pressures on my 1-ton dually when it's empty because it rides like a lumber wagon if I don't. I don't consider that an issue. Should I be concerned that I've "derated" my tires?
My truck placard calls for about 50 psi in my front tires even though they are "E" rated LT tires and have a max of 80 psi. Should I be concerned that the manufacturer recommends I "derate" my tires?
On Edit, corrected the pressure to 80 psi from an incorrect 85 psi.
