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305/45 22 - TIRE PRESSURE?

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Ibanez540r

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Just curious what everyone is running for tire pressure on the 305/45/22 (I specifically have the Toyo Open Country A/T III). I have a crew cab Laramie with 6'4" bed. I started the pressure at the door panel of 36psi all around. Seemed to have a lot of rolling resistance, so bumped them to 40. Seemed fine but as temperatures have risen lately, they went up to about 44. That seemed fine too, but my main concern is even wear. I knocked them back down to 40.

Just curious if anyone has put enough miles on a certain pressure to know what's getting even wear.
 
I've been running mine at 36lbs for 7000 miles now. Not enough wear to really notice yet.
Michelin Defender 305/45R22
 
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I had 305/45R22 Open Country tires put on last week and the installer put 39 PSI in each.
 
The chalk test is a good method for determining the best wear pattern for any given pressure range. I’m usually within 4 to 5 psi of the max psi cold rating on the sidewall of my tires. That was with Open Country AT3’s and my current Michelin Defenders.
 
I run Toyo AT3 305/45/22 @ 40 PSI cold. No issues love the tires and the ride
 
I recently got BFG KO2's, went from stock GY Wranglers 275/70/18 to the 35" 12.5 BFG's. I messaged BFG on FB & they immediately responded to me. I gave them the specs & they got back to me & gave me the proper in inflation. Maybe try that with Toyo.
 
petersandler said:
How do you like those Nitto NT 420V's? They're on my shortlist for 22" upgrades along with the Toyo Proxes STIII and Goodyear Eagle Sport A/S.
Click to expand...
I originally wanted to order the Proxes, but they were backordered nationwide. So, I went with the Nitto. I like them. Quiet, comfortable, sticky. Not much else I could ask of them.

Sidewall looks nice too.
 
Ibanez540r said:
Just curious what everyone is running for tire pressure on the 305/45/22 (I specifically have the Toyo Open Country A/T III). I have a crew cab Laramie with 6'4" bed. I started the pressure at the door panel of 36psi all around. Seemed to have a lot of rolling resistance, so bumped them to 40. Seemed fine but as temperatures have risen lately, they went up to about 44. That seemed fine too, but my main concern is even wear. I knocked them back down to 40.

Just curious if anyone has put enough miles on a certain pressure to know what's getting even wear.
Click to expand...
There's a website where you can enter original (OEM) tire size and the new one, and it will tell you what pressure to run it at. I posted link a few times already:

clicketyclick
 
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Reverse said:
There's a website where you can enter original (OEM) tire size and the new one, and it will tell you what pressure to run it at. I posted link a few times already:

clicketyclick
Click to expand...
Your link isn’t working for me.
 
Ibanez540r said:
Just curious what everyone is running for tire pressure on the 305/45/22 (I specifically have the Toyo Open Country A/T III). I have a crew cab Laramie with 6'4" bed. I started the pressure at the door panel of 36psi all around. Seemed to have a lot of rolling resistance, so bumped them to 40. Seemed fine but as temperatures have risen lately, they went up to about 44. That seemed fine too, but my main concern is even wear. I knocked them back down to 40.

Just curious if anyone has put enough miles on a certain pressure to know what's getting even wear.
Click to expand...
When I installed my AT3's I had the same thought. I checked this site, said to 32 psi but I've been running 34 psi with no issues after 5000 miles..
tiresize.com

Tire Pressure Calculator

Easy to use tire pressure calculator. Use our tire pressure calculator to calculate the new tire pressure needed when changing tire sizes.
tiresize.com tiresize.com
 
TLOC said:
When I installed my AT3's I had the same thought. I checked this site, said to 32 psi but I've been running 34 psi with no issues after 5000 miles..
tiresize.com

Tire Pressure Calculator

Easy to use tire pressure calculator. Use our tire pressure calculator to calculate the new tire pressure needed when changing tire sizes.
tiresize.com tiresize.com
Click to expand...
Just stumbled on this thread after getting the AT3 installed last week in the same 305/45r22 and thought I'd add my two cents.

I used the link shared above and also emailed Toyo directly and the same recommendation came back from both -- 32psi.

I was surprised at how low compared to what others are running, but planning to air down later today and see how it goes for a bit.
 
I have over 20k miles on my Michelins at 36psi and tire wear is normal. Cooler temps last week had my TPMS alarming with all tires around 31-32psi. The rear tires looked okay at that value but the fronts had way too much bulge for my taste.
 
Hi guys, I just installed new tires on my 2022 RAM 1500 Limited: 305/45 R22 Michelin Defenders LTX MS2. (Stock were Pirelli Scorpion Verde All season 285/45 R22). I am keeping the same air pressure 36 PSI. Here's my initial observation: acceleration and breaking takes a bit longer (each tire is 3lbs heavier than stock: New tires 42lbs vs stock 39lbs), PLUS they are a bit wider and overall diameter is bigger 32.8 vs 32.1 stock. The difference is minor but noticeable. I am wondering if anyone who went from 285 to 305 (stock rims) noticed the same difference, please comment.
ALSO - I am wondering if increasing the PSI to 38 or 40 would make the rolling resistance slightly less and noticeable, has anyone tried that?
(I'll attached some photos of new tire later)
 
Increasing the tire pressure to 38 or 40, should reduce the rolling resistance. I was wondering if a pedal excellerator like the banks pedal monster might help with acceleration.
 
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