Increase tire pressure when towing?

[calgator73]

Did you take your front fender height back down to full load restoration? Did I read this correct that it's your rear tires outside edge that is wearing funny?

 

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[007matman]

Did you take your front fender height back down to full load restoration? Did I read this correct that it's your rear tires outside edge that is wearing funny?

 

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It's close. I couldn't adjust the hitch enough to bring it 100% back in line.

 

I did inflate to 44 PSI and didn't notice any additional tire wear on the second leg of my trip. I think I'll just need to get used to carrying a 12-volt inflation pump with me when we go camping.

 

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[MaverickZ71]

And it could be that your front-end alignment is a little off, "toed-in" too much. Or is it only on the rear tires? Do you have your tires rotated every 5K-8K miles?

[007matman]

It's only the rear. The fronts did the same thing when I recently rotated them to the back and towed with it.

 

I bought the tires from Costco and they rotate them often.

 

I know I'm near the limits of my TV so I'll just inflate the tires to the max sidewall pressure allowed on them and they should be fine.

 

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[ifixedit]

O.K., I'll try clear up a bit of confusion here. The tires you have on your truck right now have a 110 rating which means they are good for 2337 lbs. per tire and should be at the max 44 psi. if you are coming in close to the 2337 lbs. per tire rating. 2337 x 4 = 9348 lbs. total that the 4 tires are rated to safely carry @ 44 psi. In order to figure out how much additional room you have to play with in terms of what extra lbs. you can load them down with you will need to know the weight of the vehicle including passengers, cargo and all fluids topped off first.

 

This tire size is a low profile more of a 'touring / high performance' tire (not a heavy haul truck tire), again typically seen on SUV's meant to carry the vehicle, passengers and 'normal' cargo + maybe a small trailer or boat, not much more.

 

Googling your Escalade I see weights coming in from 5700 to around 6000 lbs. but it doesn't state whether or not that's with fluids. Then you have to add in passengers and cargo, etc. I'd estimate by the time all is factored in you could easily be adding another give or take 1500 lbs., so now you're tipping the scales somewhere in the 7500 lbs. range. This means you've got a cushion of somewhere around 2000 lbs. additional weight to play with. Next question is, how much tongue weight on this trailer of yours? I don't know, just me, but overall it sounds like your getting up pretty darn close to the limit on the tires and asking them to perhaps do a bit more than they are meant to.

 

The highest rated tire in this size is going to have a 114 rating which bumps you up to 2601 lbs. per tire at max inflation of 50 psi which is 264 lbs. per tire more carrying capacity than the tires you have on it now. For 4 tires total with the 114 rating that's good for 10,404 lbs @ 50 psi. Bridgestone, Yok and Toyo, among others offer a 114 rated tire in the 285/45R22 size.

 

I can say this for sure, if you stick with the tires you have and you're going to do what you plan with this trip, at a minimum I would CERTAINLY bump them up to the 44 psi. and no less, AND watch your top speeds.

 

Forget the chalk ideas and other tricks to read tires. A good / accurate tire pressure gauge, a tread depth gauge, and a good eye are all you need.

[diyer2]

The right tire to carry the load as ifixedit said. I run my tires 10 psi under max or 35 psi unloaded and take to max psi for heavy towing or hauling.

[ifixedit]

The right tire to carry the load as ifixedit said. I run my tires 10 psi under max or 35 psi unloaded and take to max psi for heavy towing or hauling.

 

That is a very good practice.