Delivered Tire pressure

What was you delivered tire pressure? Mine was a 34lbs Door sticky says Cold pressure 29lbs I let some air out and reprogrammed the sensors.

 

Mine were almost 40 psi per a couple of pencil gauges in the garage. Right now my dash is about 5 psi lower than the cheap gauges I've got, so keeping it at 29 psi via the dash to see how things go. The reading I've done, the sensors are supposed to be pretty accurate.

 

My SR5 tires are at 33psi based on the dash gauge, door sticky says 32psi.

 

Are you really asking? Or was this question copied from somewhere else?

 

depends. during transport the air pressure is jacked up so the vehicle doesn't bounce as much. during PDI inspection there is a step where the person is suppose to drop the psi back to factory settings.

its really bad on vehicles coming from japan via ship, those are jacked up into the 40+ psi range. my 4runner was at 39 psi but then again I've learned from buying Toyota's that come japan, always check the tires.

 

I have always based my tire pressure on the tire sidewall specs. I usually run about 80-85% of max psi for on-road use.

 

same here

 

This is foolish. It does not take into account any calculations of the vehicle weight, driving profile, brake systems, e.g. Engineers put thought and effort into the recommended tire pressure. Makes me wonder about complaints concerning ride noise, road feel, steering feel are attributable to poor tire pressures.

 

I always leave the trucks a little higher than spec. The 2nd gens with grand trek tires would get horrible tread wear at 29 psi

 

As an engineer, I think foolish is a kneejerk reaction. Foolish implies some likely consequence. 85% of max psi is not a risk to anyone or the tire. The tire itself is meant to be inflated to a certain psi regardless of the car in order to have proper contact with the road for even wear etc. There are other reasons car manufacturers use the minimal acceptable rating for a given gvw such as improved braking, softer ride etc at the cost of tire life, heat dissipation etc. Just ask Ford/Firestone. There is always a tradeoff, and it is depends on the interests of the party involved.

 

You would think they would air them down as low as can hold a bead, that way when they're tied down they're not really on a round wheel

 

Mine was 34 all around off the lot. I'll be continuing to run that, IMO 29 is way too low to get any decent fuel economy. Truck drives awesome at 34 so I'm not concerned and will keep my tires longer.

 

You are always supposed to follow the door sticker for proper pressures as long as you still have OE tire size and speed/load rating. The Ford/Firestone fiasco was a serious miscommunication, Toyota has been running 29ish PSI in their pickups and Tacomas for decades with no problems. That being said, I personally don't run 29 psi

 

Good one. Too bad he has you on ignore. Probably me too.