Recommended tire pressure

I follow the placard during warm weather and add a pound or 2 in the cold with stock sized Wildpeaks.

 

yes but what does the placard say for PSI? for the front and rear tires?

 

30 is what it calls for on the placard

 

so the door placard says 29psi as per what the OP stated and he thinks its too low, you say u follow the placard and are running 30psi? for the same size tires on the same truck

 

Awesome! You have me convinced I definitely dont want to lose traction on slippery roads!

 

So they do vary by trim, your OR says 30 psi?

 

No, OP has a Sport with different size

 

Different truck models, different tire sizes, different tire load ratings...

 

basically u can mess around with the tire pressures to suit your needs, I ran 35psi before lowering it to 32psi the handling,ride comfort a wear for me was perfect. some people will run 33-34psi fronts and 32psi rears for getting better mpgs its what u feel comfortable running, but I agree the door jam recommendations seem too low for me.

 

The engineers at Toyota come up with the recommended pressures for a reason, same guys that come up with the oil change intervals and other maintenance requirements, no reason not to trust them.

 

29 though??? What are they thinking over there at toyota haha

 

yes the key word is RECOMMENDED,

 

I recall my previous Tacoma's taking different pressures front and rear, at least this one is the same.

 

PSI is a means to an end...

The stock tire placard requires whatever PSI is required to attain a 2,149 lb load rating from a P-metric or ISO/ETRTO-metric tire.
The SR, SR5,and Sport use a P-metric; the Offroad uses a ISO/ETRO metric

SR/SR5-P245/75/16 109SL @ 32psi=2,172 lb
Offroad-265/70/16 112SL @ 30psi=2,149 lb
Sport-P265/65/17 110SL @ 29psi=2,149 lb

If you go to an LT the load requirement is reduced by a factor of 1.1...2,149/1.1=1,954 lbs.

 

they take into account that the tire will heat up and in turn it raises the tires PSI higher, when I run my tires at 32psi COLD and take a drive they will heat up and the pressure rises to 34-35psi when HOT

 

That is correct, you are always supposed to adjust your pressure when cold.

 

I don't know what this last bit means. Are you saying that for every 1.1 psi the load rating is actually reduced? Seems opposite of what I was thinking?

 

mine says 30 front 30 rear

 

29 front 29 rear on mine

 

yes that's why I came up with 32psi cold because they heat up to 34-35psi and that works for me