Tire pressure change from OEM to LT 10 Ply Load Range E tires?

[map246]

I purchased a travel trailer that is definitely pushing the limits of my 1500. With that purchase, I upgraded the stock 270/55R20 4 ply tires to a 10 ply Load Range E LT tire of the same size.

I know that generally, a 10 ply tire needs a higher PSI. I plan on starting at about 44psi and adjusting from there. The stock tires (from the door sticker) should be at 36psi. I will do a chalk test to confirm.

With that out of the way, will running the increased PSI on the new tires, throw my onboard TPMS into a tizzy and light up my dash? If so, is there a work around?

Thanks!

 

[vincentw56]

I purchased a travel trailer that is definitely pushing the limits of my 1500. With that purchase, I upgraded the stock 270/55R20 4 ply tires to a 10 ply Load Range E LT tire of the same size.

I know that generally, a 10 ply tire needs a higher PSI. I plan on starting at about 44psi and adjusting from there. The stock tires (from the door sticker) should be at 36psi. I will do a chalk test to confirm.

With that out of the way, will running the increased PSI on the new tires, throw my onboard TPMS into a tizzy and light up my dash? If so, is there a work around?

Thanks!

I've never seen an issue with higher PSI; it really only shows an alert when it is lower than the set threshold.

 

[John Kloehr]

I do not know what the magic number might be, I have had LT tires with a max psi of 80 (a 2500 Yukon XL). I think the minimum pressure might have been 50, do not recall.

My concerns would be what the minimum tire pressure should be and what the TPMS valve stems have as a maximum pressure. Do need to be in that range.

I do bless the chalk test to find the right pressures front and rear, both unloaded and when towing.

 

[79 300]

I purchased a travel trailer that is definitely pushing the limits of my 1500. With that purchase, I upgraded the stock 270/55R20 4 ply tires to a 10 ply Load Range E LT tire of the same size.

I know that generally, a 10 ply tire needs a higher PSI. I plan on starting at about 44psi and adjusting from there. The stock tires (from the door sticker) should be at 36psi. I will do a chalk test to confirm.

With that out of the way, will running the increased PSI on the new tires, throw my onboard TPMS into a tizzy and light up my dash? If so, is there a work around?

I had my Dodge Challenger's tires pumped up to around 40 PSI when it was stored over the winter. I took it out for a spin one day when it was nice outside, and it gave me a TPMS alarm due to over inflation. I don't know if the trucks behave the same way though.

 

[Bt10]

There is a website with a calculator that will show you what they should be. Google it, I’m on my phone. I assume you know it is a load range E tire and not a 40year old “10 ply”, unless of course you have G60s on your car yet.