P285/70R17 SL Toyo AT3 PSI?

Just got new tires and wheels put on.

Wheel is an 8.5 wide, shop put them at like 36 cold. I’ve been reading people do around 30, the PSI calculator said to do 26 which seems very low.

Just want to get everyone’s opinions and what they’re running! No extra weight, just lifted 2”/1”

 

Read your door tag for PSI. That's your baseline. Then Google the chalk test.

 

chalk test

 

From my experience with these tires over the past month, you can go down to 28psi for daily driving before sidewall flex gets squirrelly in evasive maneuvers as confirmed driving through Nashville.

I do not like these tires on the 7” TRD wheels, your 8.5” wheels are more appropriate. 30-32psi is probably about right.

 

With the TOYO AT3 ... PSI 38 looks soft, bulging and deflected.
40 Cold makes it looks firm.
44 is the MAX PSI.
Just my observation

 

i run my Falken WPs 285s at 32 psi cold. Hot they hit 36

 

I have your exact setup.. right wrong or indifferent.. I run 32-34. Every time I go get a rotation shops put them at 39-40.. I don't like the stiffness feel of that.. I have ~23K miles on them and they are wearing uniformly with reasonable 5 tire rotation frequency

 

That’s the classic ‘look’ for an SL load rated tire. Even my XL rated Bajas have a slight bulge and I run them at 34-36 psi in the winter, 38-40 psi in the summer. My friend has the 10-ply, load E version of the ATIIIs and they barely have any sidewall bulge even down to 36 psi (his tires have a max pressure of 60 psi!)