New 4runner tire pressure high!

[ElectroBoy]

Check the tire sidewall for the tire manufacturer’s max safe pressure. Never go above that. It’s probably 44 psi. This is just a reference point. That’s way too high for this truck and the OEM tires.
Toyota will have a highly suggested inflation number on the driver’s door jam, probably 32psi. They’ve determined this number as a compromise of handling, safety, comfort, performance. Most members on this forum inflate higher than that with the OEM tires, usually around 34-38 psi. Some will do the “chaulk test” to determine proper inflation for your load. Get yourself a high quality tire gauge and experiment, paying attention to the feel and handling on the road. You’ll probably settle in around 34-35psi.

 

[t6pilot]

Did you check pressure when the tire was cold or hot,
Recommend always(if possible) check when cold, hot temps can be 5+ pounds greater than cold

 

[RichinRidgewood]

My truck came with tires that were at 49psi and I thought that was high. Yesterday I checked the door and they are supposed to be at 32psi. I aired them down and and this morning they were at 31psi. I noticed a very small wiggle in the steering wheel at 60-65mph. It was not there at 49psi. I aired them up to 35 hot and we’ll see what they do on the highway. I noticed that the trucks felt better on surface streets at 35 psi hot compared to 32psi hot. The tire sidewall says max inflation of 40psi and I’m inclined to try them there sometime soon too.

 

[yota1976]

I never checked the air pressure on my 2019 Off Road when I bought it. Had the 5k service done and the paper said they were on 49 psi. They never fixed it either. When I got home, I seen how high they checked them at, so I lowered the air to 38 and left them there.

 

[mrmike7189]

50psi

Mine were 50psi when I checked them. I lowered them to 40, then 37,36,35 psi until I felt it was a better ride.:boom:

 

[Gamma Ray]

Mine hover between 49 and about 52. They're typically at 50. It seemed a bit high compared to my previous vehicle, but whatever.

Maybe it's too high now, but if it ain't broke, and all that jazz.

 

[02SE]

As previously stated, the factory inflates them to 50+ PSI, so the tires are less likely to flat-spot during shipping. The Dealer is supposed to adjust the inflation to proper specs before delivery.

My Dealer didn't adjust my tires. But I specifically asked them to not Detail it, as I didn't want some hamfisted kid who was late for his first date, damaging the finish inside or out.

How many threads have there been about scratched head unit screens, due to overzealous 'cleaning'?

 

[JLTD]

Wow 52 psi on a tire where the max is 44!?!?!

Drop it to at least 44 cold right away.

I have always found that the manufacturer placards the pressure for the most cushy ride at the expense of uneven wear on the outside edges. Have run higher psi on every vehicle the last 20+ years. Some were at max for the tire, others somewhere in between and it's dependent on vehicle weight.

Currently running 40psi in stock SR5 with the Bridgestones.

 

[Sonoran_Desert]

Unfortunately the over inflation issue does not stop at new vehicle delivery. My 4runner with stock SR5 Bridgestones went into dealer at 32 psi and came out with 45 psi, twice.

 

[osugsxr]

Just took the time to measure psi of the stock Bridgestones, and they are set at 52psi! Tire walls state 44 psi max. What gives?
With a high load, should I keep them here or decrease to 44psi?

return the SUV and demand a new one.... geez

 

[grizzlypath]

Pretty much any new car I've picked up, or tires I've had done at a shop, has been inflated to around 50-55psi. No idea why, it's obnoxious and really doesn't help how I feel about shop work. I always re-adjust the pressure to normal levels.

 

[RichinRidgewood]

Yesterday my tires were cold 34 psi, after driving around on surface streets they were 36 psi front, 37 psi rear. When I got on the highway the slight wiggle in the steering wheel I mentioned in a previous post was gone.

 

[PaulBTall]

2020 4Runner delivered with 53PSI in the tires

I just took delivery of my new 4Runner and it had 53PSI in each tire -- door panel recommends 32. I've made the adjustment but have to question whether this was dangerous at such a higher pressure.

It occurs to me that perhaps the factor is shipping them overinflated on purpose because a more rigid tire can be tied down more securely in transit.
​

 

[patkelly4370]

I bought my 17 used from a Toyota dealer. Aftermarket wheels and oversized Toyo tires.
Inflated to 45 psi. Within tire specs, but too high for the 4runner.
I used to roadrace motorcycles and we used a 10% guide. PSI 10% higher when the tire was at operating temperature over cold. I still loosely follow this. A lower psi heats up faster and more than a higher psi.
Where I live we have a 100° temp swing between summer and winter. Plus we live many miles down dirt/mud roads.
So I personally run 35 psi summer (up to 120°) which warms to 38 psi.
Winter (down in the 20°'s) I drop to 30 psi to warm the tires more for better traction. Also helps when driving through muddy washes.
Offroad I go as low as 15 psi, like in the photo.

Sent from my SM-G955U using Tapatalk

 

[cb1111]

I just took delivery of my new 4Runner and it had 53PSI in each tire -- door panel recommends 32. I've made the adjustment but have to question whether this was dangerous at such a higher pressure.

It occurs to me that perhaps the factor is shipping them overinflated on purpose because a more rigid tire can be tied down more securely in transit.
​

Bingo! That and to account for the normal pressure loss over time.

the dealer is supposed to adjust the pressures during PDI