Falken Wildpeak AT4W Tundra psi?
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depends alot of things, tire load rating, truck weight, if you are getting wear on the tire edges, if you like a more compliant ride, if you want better snow ice performance, tire chalk test results,
on a tundra with an e rated tire i like around 38lbs all around
on a tundra with an e rated tire i like around 38lbs all around
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It’s a D rated tire
Brand new so I am not getting wear yet
What is your chalk test ?
Tundra is empty for the most part, just carries me. Not towing
REKCUT
SILVER Star
I have ran between 35 and 40 depending on hauling conditions. Got 91k miles before I replaced. Religious about rotation at 5k.
chalk test is covering a side to Side patch of the tire with chalk and seeing how it wears off. Another is to drive through a puddle on dry pavement and look at the pattern left. Your looking to see if you have too much air by weather the entire pattern is visible and not just the middle.
I currently have drawers and a smart cap camper and run 38 in rear and 36 in front
chalk test is covering a side to Side patch of the tire with chalk and seeing how it wears off. Another is to drive through a puddle on dry pavement and look at the pattern left. Your looking to see if you have too much air by weather the entire pattern is visible and not just the middle.
I currently have drawers and a smart cap camper and run 38 in rear and 36 in front
Go with what's on the door jamb. I just put Toyo R/T Trail 285/75R18 on my 2010 Tundra on factory spec rims.
The tire guys at OK tire asked what I wanted and I said 34 psi as I had a 200 mile trip the next day just to run them in.
I stopped on the side of the road the next day to check as they had a funny shimmy in the back.
Found the tires at 40 psi. Lowered the tires to 32 psi. Funny shimmy went away.
BTW it says 30 psi front 33 psi rear, but according to scales I'm 250 lbs heavier in front so unless I'm hauling
that extra why keep rear tires inflated higher?
New tires are hard and need a bit of wear in time. Over pressurizing them and this nice new hard tire will
not flex like it will when broken in a bit. These are an E rated tire. I also have E rated Toyo MTs on two land
cruisers and do the same thing. Over inflating really doesn't improve anything including mileage.
If you load right up, then look at the max load rating on the side of the tire and air up accordingly.
My .02 but I'm on my 3rd set of MT's - for me airbags and tires adjust according to load. But
minimum when just running around town.
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You can email Falken with your specific vehicle information and they will let you know a recommended pressure.
(It will likely be different than the door card pressure)
I have 10 ply Falken Wildpeak AT3's on my 2023 Tundra and Falken recommended 45/45 psi front rear.
(It will likely be different than the door card pressure)
I have 10 ply Falken Wildpeak AT3's on my 2023 Tundra and Falken recommended 45/45 psi front rear.
FWIW - you should look at tire load inflation tables to get a pressure on the new tire that roughly matches the load carrying capacity of the tire on the door jamb at that pressure. In the case of a Gen2 Tundra - that means you're shooting for a minimum of about 2,500lbs per tire.
If you swapped to LT tires - you should not use the door jamb pressure. LT tires require significantly higher pressure to maintain the same safe load carrying capacity. The primary reason is that they have thicker sidewalls in both rubber and in the materials of the radial cords (metal wires) used. The thicker sidewalls generate more heat internally as they flex and therefore need to flex less to prevent thermal breakdown while driving. It seems counterintuitive, but you need more pressure in LT tires for the same load.
Find the Correct Tire Inflation Pressure - https://www.toyotires.com/tires-101/tire-load-and-inflation-tables/ <- This is the guide and information website.
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.toyotires.com/media/pxcjubjs/application_of_load_inflation_tables_20200723.pdf <-This is the PDF table.
There's one factor that isn't shown in the table that I recall - there is a standard for reducing the load rating by 10% for use on trucks. So, the 2,504lb load rating on the P metric tire is functionally 2,253lbs.
In order to get to a 2,253lb safe load carrying pressure in an LT275/65/18 tire (same load as 32psi in a P275/65/18) you need 45psi in the LT tires. At 35psi you have only 1,940lbs of load limit - less than the stock tire. An empty truck is likely less than that on each tire. But it could get unsafe if you haul or tow much. 30psi is not shown on the table, but would be somewhere in the range of 1,600 - 1,700lbs. That leaves very little margin over the empty weight of a Tundra.
Discount Tire was right. You should be at 45-50psi.
EDIT: I would be careful relying on the chalk test. It is only marginally useful IMO. And it doesn't tell you much about the sidewall flex or load limits. You can end up with a tire that is at an unsafely low pressure for the load. And it doesn't always end up with even treadwear anyway because it doesn't tell you much about how the pressure is spread across the tread width. It's a useful data point. But I wouldn't rely on it to set pressure safely for load capacity.
If you swapped to LT tires - you should not use the door jamb pressure. LT tires require significantly higher pressure to maintain the same safe load carrying capacity. The primary reason is that they have thicker sidewalls in both rubber and in the materials of the radial cords (metal wires) used. The thicker sidewalls generate more heat internally as they flex and therefore need to flex less to prevent thermal breakdown while driving. It seems counterintuitive, but you need more pressure in LT tires for the same load.
Find the Correct Tire Inflation Pressure - https://www.toyotires.com/tires-101/tire-load-and-inflation-tables/ <- This is the guide and information website.
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.toyotires.com/media/pxcjubjs/application_of_load_inflation_tables_20200723.pdf <-This is the PDF table.
There's one factor that isn't shown in the table that I recall - there is a standard for reducing the load rating by 10% for use on trucks. So, the 2,504lb load rating on the P metric tire is functionally 2,253lbs.
In order to get to a 2,253lb safe load carrying pressure in an LT275/65/18 tire (same load as 32psi in a P275/65/18) you need 45psi in the LT tires. At 35psi you have only 1,940lbs of load limit - less than the stock tire. An empty truck is likely less than that on each tire. But it could get unsafe if you haul or tow much. 30psi is not shown on the table, but would be somewhere in the range of 1,600 - 1,700lbs. That leaves very little margin over the empty weight of a Tundra.
Discount Tire was right. You should be at 45-50psi.
EDIT: I would be careful relying on the chalk test. It is only marginally useful IMO. And it doesn't tell you much about the sidewall flex or load limits. You can end up with a tire that is at an unsafely low pressure for the load. And it doesn't always end up with even treadwear anyway because it doesn't tell you much about how the pressure is spread across the tread width. It's a useful data point. But I wouldn't rely on it to set pressure safely for load capacity.
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i agree, if its wearing the chalk off evenly then when you turn you are scrubbing the tire edge off more, so it should be a bit higher pressure than an even chalk test unloaded
I don't think it's a bad thing to get more information. Just being cautious because the times I've tried it with offroad tires in particular I ended up in with tire pressure around 10-15psi range to fully flatten the tread. Maybe 35's on a 3500lb minitruck should be 15psi
. That pressure made for a super bouncy ride that was unstable in the corners and probably at risk for sidewall heat issues. I think in most case wide tire + narrow wheel = center wear at proper inflation. Probably the inverse also holds that wide wheel and narrow tire = tendency to wear outer edges more at safe highway pressure.One interesting data point is from a study where they used some special sensors to measure pressure at high speeds. What seems counterintuitive for me is that the result showed that at higher speeds the tread pattern spread out and moved the load distribution more from the center to the outsides of the tire tread. I would expect the opposite - like what happens with top fuel drag car tires where they elongate and have a narrower contact patch.
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