PSI for excessive wear on the outside?

I've noticed a lot of folks here mention really high tire pressures (44psi, etc.) My door panel for a 2019 crewmax limited (4x4 w/20in stock tires) says 30/31psi.

That said, I'm getting the excessive wear on the outside of the tire many others report, and I'm wondering if increasing the pressure would help? 31psi seems low, but that's what the door plate says.

I'm curious what the rest of you folks run in your stock tires?

 

I'm 35/38 and see even wear on my 18" Michelins. You remember the Ford Explorer/Firestone fiasco? That was in part due to Ford's insistance to use a lower than normal tire pressure for passenger comfort.

 

Ya I never understood that sticker mine says 30/33
I run 40psi winter 45psi summer on 20's

 

we talking stock OEM tires or aftermarket E's?

 

This.

Factory P rated tires typically run around factory recommended pressures, where different load ratings (E is pretty common) requires higher pressure. Mind you, a P rated tire may have a max cold PSI of 48-60, where an E rated tire is typically around 80 PSI.

 

OEM stock on my 2019 crewmax: Bridgestone Dueler Alenza 275/55R20. An 18in stock was also offered on this model.

I'm going to replace with Michelin LTX.

 

I'm wondering the same, I just got a set of Michelin Defender LTX M/S2 on my 2020 1794 4WD and it changed the truck for the better, smoother ride, almost no noise and my MPG has been creeping up. I also did an alignment since my previous factory tires Michelin LTX AT2 were almost bald on the outer side. Costco installed the new tires and they put 35 on all of them, that was only 2 days ago and the truck has been riding so nice I almost don't wanna touch it but still have the same doubts as you.

I'm stock 18" Rims and Tires are 275/65R18 116T

 

Running mine at 38 all four, 20 inch Nokians..so far wear looks good..

 

If you are getting excessive wear on ONLY the outside, you might have an alignment problem. Low air pressure will wear excessively on both the edges of the tire.

 

had alignment at ~15k and 30k -neither were much out of spec. The outer tire wear seems to be common on these trucks even with proper alignment.

 

I think Toyota may had to compensate a low degree caster with higher toe-in to have at least some steering stability around zero. On my Volvo wagon caster and toe-in are twice of and half of Tundra's respectively, it can drive a mile straight without intervention and have no abnormal tire wear. Tundra is floating off the track on the highway and wears outer edges out, yes.

 

might be excessive toe. I know the toyota spec says up to 18 or 20 is good, but I have read on here and experienced myself that the lower the toe the better, I think the sweet spot is around 13 or 14

Biggest reason would likely be PSI and tire type tho.

 

Face it our tucks are heavy!!! The OEM p rated tires they come on have soft sidewalls for ride comfort and flex quite a bit in cornering, the lower pressures Toyota "recommends" only exacerbates the problem on the steer tires.
I increased the pressures in my OEM Bridgestones to 34/37, in my opinion the truck handles better and tire wear has looked good from 14k to the 42k I now have.
Hopefully get another 10k out of these Bridgestone tires then going to Michelin Defender LTX M/S2, stock size, but that's a whole new discussion