cold tire pressures? for comfort? for mpg? for tire life?

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Adieu

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Everything you would need to know.

Drop mic.

Sadly, this is just a bunch of warnings and a table of MINIMUMS as per safety regulations.

Except for telling us basic what is and isn't acceptable data, it provides NO further information
 

lbv150

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Sadly, this is just a bunch of warnings and a table of MINIMUMS as per safety regulations.

Except for telling us basic what is and isn't acceptable data, it provides NO further information

It's 55 pages with very comprehensive information with tire size cross referencing and changing from P to LT, etc.
 
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It's 55 pages with very comprehensive information with tire size cross referencing and changing from P to LT, etc.

I know I studied it, and that there was my conclusion:

Sadly, this is just a bunch of warnings and a table of MINIMUMS as per safety regulations.

Except for telling us basic what is and isn't acceptable data, it provides NO further information
 

powerboatr

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my hankooks are listed as 44 psi max load
i run 38 up front and 36 out back. rotate every 5k miles or so
seems to ride well and so far even tread wear across the width
at 6400 lbs wet, she is pretty balanced, 3400 on front and 3000 lbs out back
 

DF5.4

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I have E rated tires on my 15 EL with the HD tow package. I run them at 37 psi when not towing. I like the feel of the E rated tires better than the P rated.


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MooseSquatch

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I recently installed a puck lift on my 16 EL XLT 4x4 (only lift available for the 15-17 models).

I went with the Falken Wildpeak AT3Ws in an oversized 33” size, and wasn’t sure what PSI the tire shop gave me.
My truck was riding AWFUL at high speeds and I ended up gauging my brand new tire when I rubbed against the sidewalk. It blew my mind how my E-rated tires had just torn in two spots. I checked the PSI, and the front right was at 62, the front left was at 45, and the back two tires were at 40psi. I was dumbfounded to say the least - as I’ve been going to this shop for years (as have my buddies).

This is my first time putting on oversized tires - and Google wasn’t really helping me figure out the proper PSI for DRASTICALLY different (upgraded) tire rating/sized - and their proper PSI.

I called my tire shop and they told me that since I went up in ply/sidewall rating, that I’ll need a higher PSI and that I should air my Expedition up to 50PSI all around - and I did - what a mistake. I just aired back down to 36.5 PSI all around and now love my ride - I still have to do a chalk test, but I now know that increasing your tire sizes doesn’t necessarily mean that you have to increase your PSI.
 

07navi

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As a F Y I ; Tires are strongest at their rated PSI max. Not saying you have to run them there though. Example; E rated tires are rated at 80 PSI and some people actually run them there. Not a bad idea if you are towing a heavy trailer.
 
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