Bouncing on certain interstates with stock tires

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DJElliL

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Utah
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2020 Power Wagon
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Hemi 6.4
Wow, thanks for all the help everyone! I didn't even think about the PSI, I wrongly assumed that it was normal guidance for those sized tires, I even asked the dealership specifically and they said it was normal.

I'll experiment with some lower PSI and see what I get.
 

UTAHPWRWGN

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Hurricane, UT
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Wow, thanks for all the help everyone! I didn't even think about the PSI, I wrongly assumed that it was normal guidance for those sized tires, I even asked the dealership specifically and they said it was normal.

I'll experiment with some lower PSI and see what I get.
With HD trucks the OEM's are obligated for liability reasons to use tire inflation settings that will guarantee safety at maximum load (cargo + towing). Because those numbers are so high an empty truck will ride like dog shit because the tires are ridiculously overinflated.
 

olyelr

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Wow, thanks for all the help everyone! I didn't even think about the PSI, I wrongly assumed that it was normal guidance for those sized tires, I even asked the dealership specifically and they said it was normal.

I'll experiment with some lower PSI and see what I get.
I bought my pw brand new from a dealer with over inflated tires…and im not just talking overinflated from a pressure i think is correct, im talking overinflated from what the sidewall max reads.
 

Dean2

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The tires come aired to 80 pounds from the factory so they don't flat spot from sitting and for purposes of transport as previously mentioned. When the dealer PDIs your truck they are supposed to air them down to the door sticker. Good dealers do, poorer ones don't. Have to ask yourself, if they miss the tire pressure, what else did they miss on the PDI check list.
Here is a link, this specific one is for the Duratracs I run, same size as yours, but you can find other makes by scrolling down to the Tire make list and click on yours.
https://tirepressure.com/lt275-70r18-tire-pressure
My truck sticker says 65 rear, 60 front, I run 50 (chart says 10,720 load split evenly on all four tires) all around based on the loads I carry and at that pressure I am over max GVW. I could drop to 40 all around for everyday use based on my normal loaded weight.
I get a low tire warning from the TPS every time I start the truck and the yellow tire warning light is always on. The dealer is not allowed to change the TPS limits. You can reset TPS limits with Alpha OBD but I have never bothered to get one, and the security cable that you need to run it.
 
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