ok fellow 5th gen guys need fast tire help

[Thai]

What is even worse then that is toyota insists on putting P rated tires on the tundra which is meant to tow what like 10k lbs?

My colleague at work has a F150...one of the new ones with Scorpion tire...P-rated. He is a part-time farmer...and i warned him about towing with those tires on. He does heavy towing and gives his truck a good workout. Well, he did not listen to me...and one day, 2 of his tires blew out on the highway!! No nail. No trauma to the tire. They just blew. Luckily he was not traveling fast...and was able to pull to the side of the road. He now has proper LT tires on.

 

[JB.]

He now has proper LT tires on.

Hopefully you told him he needs to pump 'em up.

 

[Thai]

Hopefully you told him he needs to pump 'em up.

Good point.

 

[deekoi]

My colleague at work has a F150...one of the new ones with Scorpion tire...P-rated. He is a part-time farmer...and i warned him about towing with those tires on. He does heavy towing and gives his truck a good workout. Well, he did not listen to me...and one day, 2 of his tires blew out on the highway!! No nail. No trauma to the tire. They just blew. Luckily he was not traveling fast...and was able to pull to the side of the road. He now has proper LT tires on.

You guys are scaring me! I plan to get Revo2 but not E rated for my TE that I don't have yet . I don't tow or anything but I do camping and snowboarding trips with a full ride and possibly get a storage rack on top.

Also down the road thinking of a ATVing trip where I would tow a few ATVs (but not certain about this yet)

How much do you have to worry about? This is the site I'm looking at, I don't see the load letter for this one but they have one that is E load: Bridgestone Dueler A/T Revo 2

 

[SeattleMike]

How much do you have to worry about? This is the site I'm looking at, I don't see the load letter for this one but they have one that is E load: Bridgestone Dueler A/T Revo 2

The "e" rated would be the 121/118S versions.

I don't really worry about it, I have "e" rated tires. I know I will always carry a lot of weight in the back when all is said and done, so I purchased accordingly. And when I have a final loaded weight, I will upgrade the suspension accordingly.

 

[UNC4runner]

Can I ask what size you have ?? what rating P/C or E ?? Also what are you running for air pressure ?????

At this point I'm thoroughly confused about tire load ratings and I'm apparently missing the boat. My sidewalls read P265/70R17 133S.

I thought I was getting the highest load ratings because the LT265/70R17 tires (the only other option I've seen at that size) are rated at 109/112R and are designated "Load Range C" on Tirerack.com. 113 is higher than either 109 or 112 so I thought I was good to go. But after reading some threads here I'm obviously missing something because people seem to point and snicker if you don't have "LT" tires. At any rate, I don't have anything to tow at this point, generally don't load my ride down any more than the average joe, and when I go offroad it's dirt, grass and gravel. I'm not out rock-crawling every weekend, so I think I'll be okay.

The dealer installed them and had them pumped up to 44psi, which made for a good ride. I'm going to pull them back to about 40psi though and see how they do, because it's already obvious they're wearing more in the center. I haven't gotten around to it yet though, so I can't report on how they will ride after that.

If anyone wants to "educate" me on which tire is which, by all means do so. I'd like to learn.

 

[philsey]

There is tons of info at tirerack.com

 

[SeattleMike]

If anyone wants to "educate" me on which tire is which, by all means do so. I'd like to learn.

The "P" stands for Passenger, meaning it's designed for passenger cars that drive on pavement and is more flexible or "bouncy". The 265 is the width of the tire in millimeters, the 70 is the height of the tire as a percentage aspect of its width (in this case, 70% or 185.5 mm/7.3 inches), the R stands for Radial, and the 17 is the rim size. The "113S" is a combination rating of both load capacity and safe driving speed, which is 2535 Lbs. and 112 MPH, respectively.

You have passenger tires in the stock size. Your tires should not be inflated @ 44psi, they should be inflated at the pressure listed inside your door, which I believe is 32 but I haven't looked in a long time so I might be wrong.

There is nothing wrong with a "P" tire. The reasons for going with an "LT" or Light Truck tire are mostly due to carrying weight, planned off-road use, and maybe aesthetics. My tires are the same size as yours, but they are LT tires, they are rated "121Q" which translates to 3197 Lbs and 99 MPH.

I hope that helps, but if you have more questions, you can find a good amount of info here.

 

[UNC4runner]

I hope that helps, but if you have more questions, you can find a good amount of info here.

Thanks for taking the time to explain. That is helpful and I had read most of it before but only partially understood. I think what confuses me on the Destination AT is that the LT has a lower load rating (109/112) than the P (113), which seems to defeat the purpose. But I suppose the LT has stiffer sidewalls, therefore less chance of damage/blowout in extreme conditions?

Either way, hopefully I'll remember all this and be more informed the next time I buy tires. Although I don't regret my decision in this case. I'm happy with the tires for now and I got a good deal.

Sorry for hijacking the thread, but it seems like the OP was done with it anyway.

 

[4RFan]

I have no doubt that the P rated Destinations will be perfectly fine - they are designed to, and can easily handle a fully loaded 4Runner.

With gas prices going up, the better mileage of the P tire will be very welcome and your body and your truck will appreciate the better ride quality offered by the P tire.

 

[JB.]

You guys are scaring me!

Not only should you not worry about it, the scenario is, in many ways, reversed from the way you probably have it in your mind. See my reply to UNC4runner.

 

[JB.]

At this point I'm thoroughly confused about tire load ratings and I'm apparently missing the boat. My sidewalls read P265/70R17 133S.

You're not alone. Tire Rack doesn't help when they omit the P and LT prefix from listed tire sizes (must think it sells more tires). The key is understanding that P and LT are two different kinds of tires and load discussion doesn't work very well unless the distinction is made because there is load overlap.

I thought I was getting the highest load ratings because the LT265/70R17 tires (the only other option I've seen at that size) are rated at 109/112R and are designated "Load Range C" on Tirerack.com. 113 is higher than either 109 or 112 so I thought I was good to go.

Good observation.

ABut after reading some threads here I'm obviously missing something because people seem to point and snicker if you don't have "LT" tires.

If anyone wants to "educate" me on which tire is which, by all means do so. I'd like to learn.

Some of this part was written for deekoi but it works here too.

LTs have their place, but technically warranted applications for a 4runner are not all that common. Heavy off-road abuse. Maybe some severe towing situations, but with the size of the 4runner, I doubt it. Maybe some snow needs too but that often breaks down under analysis.

If you buy same size LTs and run them at door sticker pressure, risk of tire failure has increased. (Still small, but that is the direction the curve has gone). Only when you put more pressure in them (8-15lbs, depending) does the curve come back to general parity. At that point the comparison gets more complicated. LTs are thicker, stronger which paints a robust mental image but there are different types of robustness. For highway driving at typical high speeds, Ps are the more robust tire. They carry more load at the same psi and generate less heat (which is why they carry more load), and heat is enemy number one. Just compare speed ratings of the two tire types and then take into account the fact that speed capability deteriorates over time. That, alone, would make you feel better about Ps, I would think.

I don't care if anyone wants to get LTs but I think it's too bad when someone gets scared or shamed away from Ps when Ps, more often than not, are the more appropriate choice.

More reading about LTs in this thread:
LT vs P inflation article - Toyota - 4Runner . org Forum

 

[Thai]

Yup, JB is right...he is the forum tire expert! I guess that i can't gripe about P-rated tires much anymore...still, i hope that 4runner folks do take their trucks off-road once in a while....

 

[UNC4runner]

Thanks guys. Very helpful responses. Sorry if I got testy.

 

[Falls]

Falls, just a little story i read...may not apply to you.

A year or so ago, a group of G-wagen owners went off-roading with 2 FJ Cruisers in the desert somewhere (in US). Anyway, one of the FJ blew out BFG AT KO C-rated tire. Forgot if he blew out one or two. (You know how painful it is for me to write this since i am a fanboy of BFG AT KO! )The group consisted of very knowledgeable folks, one of which is Harald (4x4abc.com), who is an off-road instructor. The FJ that blew out the tire was modified and loaded. The folks there felt that the blowout was due to the BFG AT KO C-rated not being able to handle the heat and weight of the FJ.

So, i guess my point is that the 2010 TE weighs more than an FJ i think. And if you ever tow or have lots of people/gear onboard, then you may want to think again about C-rated tires. (And this is why i have always been against P-rated tires on SUVs like the 4runners.) But, if you're just gonna take it easy with the 4runner, then nevermind what i just wrote.

Thai , I think you know me better than someone who takes it easy on my 4R's ...lol. So if a C rated is not good then D or E your saying . The reason I thought C rated because it's my daily driver and if you remember I drive about 20k per year and thats on road . If it was a weekend off roader then it would be a totally different story. What are you running on the G these days ?