Toyo open country at3 tire pressure?

[Maurilio]

Hello guys I have a 2019 ranger with fx4 package and black appearance so it has the 18 inch wheels. I recently replaced my OEM tires which were the dynapro 265/60r18 114XL and now I went with the Toyo open country at3 110 SL. I followed the recommended 30 psi but they just look like they are low on air. Am I good to keep them at 30 psi? Anyone else has this tire and wheel combo?

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[Maurilio]

Sorry forgot to add the toyos are 265/60r18 110T

 

[AzScorpion]

I had similar Toyo's (265/70/17) on my '19 and ran them at 32psi. I found that to be the perfect setting for them so you could start there and see. Doing a chalk test is the best way to see which psi to run.

 

[Ranger_Rocks]

Had my dealer install Toyo O/C A/T III LT265/70R17 tires prior to delivery. Service advisor recommended 37 PSI which is what I use.

Using the Toyo "Guidelines for the Application of Load and Inflation Tables" PDF doc below also works out to 37 PSI for my configuration.

 

[Wes Siler]

Had my dealer install Toyo O/C A/T III LT265/70R17 tires prior to delivery. Service advisor recommended 37 PSI which is what I use.

Using the Toyo "Guidelines for the Application of Load and Inflation Tables" PDF doc below also works out to 37 PSI for my configuration.

Note that you have LTs and the OP has p metrics. Very different tires.

Chalk test is the definitive answer, but this will get you a ballpark: https://tiresize.com/pressure-calculator/

 

[Maurilio]

Note that you have LTs and the OP has p metrics. Very different tires.

Chalk test is the definitive answer, but this will get you a ballpark: https://tiresize.com/pressure-calculator/

thank you all for the replies. I followed the calculator and it says I should be fine @30 psi
I’ll definitely try the chalk test!

 

[Clank]

265/70 17s here and I have just been leaving them at 35 which is what discount tire had them set at. Been considering trying a lower pressure closer to door sticker to see if it’s any softer.

 

[jadatis]

In theory the standard load of same size as the XL, can do with a tiny bit lower pressure. So same pressure would be alright.

Tires may look low because SL has a bit more surfacelength on the ground at same deflection, but only way to know is measure the deflection and compare, but you dont have the XL to compare.

And do maxload of SL cover the highest GAWR?

The SL LI 110 cover a GAWR of 2x 1060kg/2337 lbs = 2120kg/ 4674lbs.

And the speedcode must be enaygh to cover the maximum technical carspeed.

I can make you a customised pressure/axleloadcapacity list with buld in maximum reserve, but still acceptable comfort and grip.

Is when given 90% of loadcapacity for the pressure for max 160kmph/99mph.

Will do that in next post, but if you have other wishes, write it and I work that in.
For instance for higher speed, or wanted in bar and/or KG.

 

[jadatis]

Here the list for 265/60R 18
In front of cold PSI for the Standard load. Li 110/maxl 1060 kg/ 2337 upto 160kmph/99mph AT 36 psi.
Behind the cold psi XL / LI 114/ maxload 1180kg/ 2601 lbs upto 160kmph/99mph AT 42 psi.

On Personscartires only max allowed cold pressure is given on sidewall of between 44 and 51 psi, and an ocacional XL 60 psi

SL 110 axle/ cold PSI/ XL 114 axe
2278 lbs/ 18 psi / 2204 lbs
2387 lbs/ 19 psi / 2309 lbs
2496 lbs/ 20 psi / 2415 lbs
2605 lbs/ 21 psi / 2520 lbs
2713 lbs/ 22 psi / 2625 lbs
2821 lbs/ 23 psi / 2729 lbs
2929 lbs/ 24 psi / 2833 lbs
3036 lbs/ 25 psi / 2938 lbs
3143 lbs/ 26 psi / 3042 lbs
3250 lbs/ 27 psi / 3145 lbs
3357 lbs/ 28 psi / 3249 lbs
3464 lbs/ 29 psi / 3352 lbs
3571 lbs/ 30 psi / 3455 lbs
3677 lbs/ 31 psi / 3558 lbs
3783 lbs/ 32 psi / 3661 lbs
3889 lbs/ 33 psi / 3764 lbs
3995 lbs/ 34 psi / 3866 lbs
4101 lbs/ 35 psi / 3969 lbs
4206 lbs/ 36 psi /4071 lbs/ maxlpress SL
4311 lbs/ 37 psi / 4173 lbs
4417 lbs/ 38 psi / 4275 lbs
4522 lbs/ 39 psi / 4377 lbs
4627 lbs/ 40 psi / 4478 lbs
4732 lbs/ 41 psi / 4580 lbs
4836 lbs/ 42 psi / 4681 lbs/maxl pr XL
4941 lbs/ 43 psi / 4783 lbs
5045 lbs/ 44 psi / 4884 lbs
5150 lbs/ 45 psi / 4985 lbs
5254 lbs/ 46 psi / 5086 lbs
5358 lbs/ 47 psi / 5187 lbs
5462 lbs/ 48 psi / 5287 lbs
5566 lbs/ 49 psi / 5388 lbs
5670 lbs/ 50 psi / 5489 lbs
5773 lbs/ 51 psi / 5589 lbs

 

[TJMarchand]

I have the Open Country A/T III 110T and run at 32PSI with no issue at all. I have the same size, 265/60/r18.

I also want to mention I'm extremely happy with these tires for anyone who's consider them.

 

[AzScorpion]

I have the Open Country A/T III 110T and run at 32PSI with no issue at all. I have the same size, 265/60/r18.

I also want to mention I'm extremely happy with these tires for anyone who's consider them.

For the short time I had them on my '19 I really loved them too. I was going to change out the General Grabbers on my Tremor right away for another set of Toyo's but so far these have been good. I was running the same psi on mine too.

 

[Ljhardrock]

I have been my fronts at 35psi and the back at 32 for 2 years now. When towing I usually run 38-40 psi but that may be different for you on the weight you are towing. Hope that helps

 

[Maurilio]

In theory the standard load of same size as the XL, can do with a tiny bit lower pressure. So same pressure would be alright.

Tires may look low because SL has a bit more surfacelength on the ground at same deflection, but only way to know is measure the deflection and compare, but you dont have the XL to compare.

And do maxload of SL cover the highest GAWR?

The SL LI 110 cover a GAWR of 2x 1060kg/2337 lbs = 2120kg/ 4674lbs.

And the speedcode must be enaygh to cover the maximum technical carspeed.

I can make you a customised pressure/axleloadcapacity list with buld in maximum reserve, but still acceptable comfort and grip.

Is when given 90% of loadcapacity for the pressure for max 160kmph/99mph.

Will do that in next post, but if you have other wishes, write it and I work that in.
For instance for higher speed, or wanted in bar and/or KG.

thank you for sharing all your knowledge, I can drive completely comfortably knowing everything is going to be alright. Thank you

 

[Maurilio]

I have been my fronts at 35psi and the back at 32 for 2 years now. When towing I usually run 38-40 psi but that may be different for you on the weight you are towing. Hope that helps

This helps too! I have the tow package and occasionally tow a utility trailer with a about 4500 to 5000 lbs

 

[Ljhardrock]

This helps too! I have the tow package and occasionally tow a utility trailer with a about 4500 to 5000 lbs

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