2018 TRD Off Road air pressure

I have a 2018 TRD OR with the original tires (Goodyear Wrangler AT). Label on the chassis says inflate them to 30psi cold pressure. I just went in for my 10k oil change at the dealer and they set all four tires to 35psi. When I asked about it the Asst Service Manager says "it doesn't really matter". I have a hard time believing that a 5 lb difference doesn't matter (tread wear, warranty, tire life all seem at risk with over or underinflated tires). So, I am appealing to the group. 30 or 35? Thanks!!!

 

They set it to a “hot” pressure. Which is anything over 1mi/2km.

 

Have same truck and tires. 17K + miles. Had 35+ psi all those miles on the hwy deflated on trails. No abnormal wear. Some here advocate chalk test. I am too lazy and the results back up my laziness.

 

32.5 to be safe.

No, really- BlackGT99 is right if it was measured hot. If it makes you feel better, use a good gauge and measure them early morning before you drive it.

 

Let the truck sit, recheck the pressure, and adjust to 30psi if it is concerning to you.

My new tires of larger diameter are set to 32 all around and it seems to generate proper wear pattern. I went with the door sticksr when I had original tires.

 

I sometimes use the squirrel or rabbit test and they seem to work just fine.

 

I've always set truck tires to 35 psi. Then got the taco, on the sport models its 29 written on the door jam. Now that just seems way too low to me, but that's what the manufacturer says so who am I to argue. I usually set 1-2 psi higher cold anyway to offset pressure loss over time so I dont have to fill them as often. I think mine are probably 32-33 now. So in summary, do what you want. Much easier letting air out than in!