Hope everyone’s having a great day!

I’ve been really enjoying my new-to-me 2020 GX460 with the 19" wheel sport package. When I bought it, it came with new 275/55/19 Nitto Motivo 365 tires, and I just noticed they were set to 42 PSI. While washing the car, I saw that the door sticker recommends 32 PSI. Should I lower the tire pressure to 32 PSI to match the manufacturer’s recommendation?

Additionally, I purchased 18" OEM tires for $400 locally and plan to buy Falken Wildpeak A/T4W in the future. What is the recommended daily PSI for ATs for daily driving?

 

32 PSI is for the stock OE rubber from the factory, and even then most are bumping those upto 35 at the very least.

I would search online whats the ideal PSI for that tire.

 

depends on the plys and the ride you want. i even change depending on the season.

 

what are plys? I want comfort.

 

Tire ply refers to the layers of material that make up the structure of a tire, providing strength and support. Each layer, or ply, contributes to the tire's ability to carry loads and maintain its shape while in use. copied from google

higher ply count means stiffer ride, stronger tire, higher sidewall strength, higher load capability, often used at higher psi, often longer life, often used on trucks
lower count gives softer ride, lower sidewall strength, lower load capability, often used at lower psi, often shorter life, often used on cars

comfort is personal. some use comfort to mean floaty, soft while others use comfort to mean more road feedback (seats not wheel).
can put higher psi into low plys or lower psi into high plys, theres some overlap in parameters to get certain cushiness values (based on the tire and not the suspension)

 

^ ... adjusting psi for "comfort" is potentially dangerous ... use at least the minimum psi recommendation by the specific tire manufacturer based on tire construction.

 

We set our gx to 35psi all around, I feel 32 is to low.

 

What exact size and load index and pressure does the door sticker say?

 

+1 for 35psi. That what I run on my 21GX with 18” tires. I used that on all of my previous vehicles as well.

 

... all "tires" are not created equally ... meaning size and construction (load rating). Just because "tires" are on a "GX460" does not mean psi can be universally applied based on random forum input.

 

just an example chart, not meant to be directly applied to your gx or your tires

 

FWIW, ask on ih8mud/200 section. Folks have a dedicated thread where they are eager to help on proper PSI.

 

Yes. Check the tire pressure when the tires are cold.

 

this entire conversation made me realize that you really cannot go by that sticker on the door frame because the PSIs that you use in your tire depends on the actual tire that you put on the vehicle. In other words standard load rating versus LT rating of the tire in question. So I would suggest going with what it says on the actual sidewall of the tire not what it says on the door frame.

 

"Yes" ... but only if the actual tires are the same load rating as indicated on the door jam sticker.