What tire pressure for my 265 70R17s?

i have Goodyear DuraTrac 265 70R17s on my 2010 tacoma quad cab v6 long bed. looking for recommended tire pressure. bought tires from tirerack and they recommend 29psi but that seems low to me. any recommendations on right tire pressure?

 

I run 32 - 34 psi.
Anything more an the ride gets "rough"
I have upped it to about 38 when hauling heavy loads in the bed along with a trailer.
But that was on the rear tires only.

 

When I had mine I pumped them up to 40. They have weak squishy sidewalls. I had a lot of away when cornering with lower PSI. Also helps your mileage a bit. Just play around with them until you find what works for you or do the chalk test.

 

Chalk test - every rig, setup and tire is different. I run 35 psi on my Cooper Discoverer ST Maxx E-rated 285/70/17 after chalk testing.

 

This.

I was surprised to find that they ride better at 34 psi up front and how pliable the sidewall is for a E rated tire.

Usually when you put a bigger tire on, you should run a psi or two less. Add in the E rating and remove another couple psi.

The Tacoma calls for 29 psi front and rear for stock tires. I started w/ 28 up front and 26 in the rear. The rears are perfect. The fronts needed a lot more air. Upped to 34 psi and it rides much better and not harsh.

Don't be afraid to air up those Duratracs. Super pliable sidewall. Really shows how far tire tech has come in the last 10-15 years. Soft compound for great traction but holds up. E rated sidewall but flexes as well or better than many P rated tires. They are noisy and you can feel the knobs at slower speeds. Track amazingly well considering how aggressive the tread is. Really great tire.

 

Follow the recommended pressure on the side of the tire.

 

The stated pressure on the tire is max pressure when cold, not max pressure. I assure you that 29 lbs. is way to low for that tire. That causes heat build up and can damage the tire. From what I understand those tires are rated at 51 max. cold. Correct me if I am wrong. http://www.goodyear.com/en-US/tires/wrangler-duratrac/sizes-specs
It will not hurt the tire to inflate it to that amount cold and it will get the best MPG.
Anything above 32 lbs cold on that tire would be fine as long as the truck is not loaded. It just depends on if he wants MPG or tire life. I get both because of driving habits.

I still have my stock tires on my truck and always run them 3 to 5 pounds above tire max cold. 3 on the rear and 5 on the front. I am after the MPG. I have been doing this for over 50 years and never lost a tire to failure. A little over inflated is always better than under inflated. However I am not suggesting that anyone else follow me in over inflating their tires. That is a personal choice, but max inflation cold is safe and will help in extra mpg. I check mine once a month to maintain those pressures.

 

So I should inflate my tires to 80 PSI ?

 

Keep in mind folks... even if the tire says 51 PSI Max Cold.... depending on where you live and your driving conditions your "hot" temperature will differ from someone else. So pushing to the "max" labeled on the tire isn't necessarily the safe way to go. Remember, that is the "max".

Most tires show a max that's much higher than the manufacturer of the vehicle tells you to use. For example my OEM Dunlop AT20's say 51psi Max Cold on them. But Toyota's sticker inside the door says 30psi. I'm certain there's a reason it's 21psi less than the "max" rating on the tire.

Here's the million dollar question: 51 psi max at what "cold" temperature? In the garage overnight? Parked outside in the sun? After a short trip to the quickie marte?

 

Try it and let us know how that works for you
I get the best ride and traction at 32psi. Cold.

 

If that is the max cold spell out it will not hurt them. It depends on what you are after. Soft ride, then no. MPG then yes. Best traction, then no, MPG then yes.
Any tire rated at 80 LBS max cold is a D tire. Unless there is some special reason for them they have no business on a Tacoma as a Tacoma is not equipped for that load range. They do make a great off road tire, but are poor for daily or hwy driving and my assumption was he was asking about hwy driving not off road.

 

E

and it doesn't matter , Max pressure on the tire is not the " recommended " pressure

 

Not true. The manufacturer takes into consideration different climates when labeling those tires. Max cold is max cold regardless where you live. It is not max cold in Alaska and different max cold in Florida or Texas.

If you check the tires in the morning and it is 80 degrees and the temp rises 20 degrees those tires will increase in LBS by 2 LBS. It is 1 pound increase for every 10 degree ambient. The same on the down side, you lose 1 LB for every 10 degree ambient. If there is any real gain or loss it will come if you fill the tires in the mountains and drive to sea level or visa versa, but there is no problem with where you live and different climates.

 

You are correct it is an E rating and even worse than a D on a Tacoma. However he was asking for recommended pressure and max cold pressure will give the best MPG so it is recommended for that. It depends on what he is after, but for sure 29 is way too low and can damage the tire as well as wear it out prematurely.

 

?

 

Sorry I thought you understood. It is included with the numbers on the side of all tires. Hard to see but there.

 

How many visits to the chiropractor do you guys who run at the max sidewall pressure make?

I run 36 front and rear on the junky "Autogrip A/T Trak" tires that came on my truck (but will wait to replace until I burn through them). Couldn't imagine how rough it would be if I went much higher...

 

You are correct it does give a stiffer ride, but I grew up on the farm and all our equipment road stiff. I guess I am just used to it and I don't mind sacrificing a little creature comfort and get the extra MPG's to keep my bank account at a higher level. The oil companies are rich enough. In the end it is to each their own.

 

In the morning before the sun has hit the tires. Check monthly due to ambient changes in the temperature due to seasonal changes. If they are at 29 psi in January they'll likely be at 32 in April or May as long as there's no loss of air from any sort of leak. That's in theory.

 

Not sure if seriously