Hey guys, I'm running 33 nitto terra grappler, and I am currently running 28 psi, what's a good winter tire pressure? I know a noob questions but just curious to know

 

I can run lower than 32ish. With 2013+ lowest I can set tpms with procal is 22 or off. At 30 or below in morning its at 22- psi and damn alarm goes off til 28. So alas I run 34-35 in winter and 26-28 summer

 

I have a 2014 jkur and run 28-30psi and live in Montana. The jeep sits out and even when sub 0 it does not go low enough to set the low pressure light off, I have mine set at 20psi and it works. You can use the procal to set it lower then 22 psi even tho the instruction supplement shows differently. I have to go home to look how I did it but if you go to the AEV forum there is a thread on it. Off the top of my head you need to use some settings that the per 13's used I just don't remember until I look at the sheet.

 

Two schools of thought with winter tire pressure (particularly in regards to snow).

1- increase pressure to increase the amount of pressure per inch of tread on the ground to keep you in contact with the snow/ ice

2- lower pressure to 'float' over the snow, but it certainly won't help you with ice

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I started driving in the early 70's and have lived in Montana all my life. I remember when I was younger I was told to pump the tires up in winter for traction. At some point I was told it was better to run a bit lower. For me lower has always provided best traction on ice/snow. Tires with lots of sipping really help too.

 

OK. Ignore the "AZ" part of my "handle" (old CB lingo). I grew up as a Yooper. Those of you that know, cool. Those that don't, think "cold and snow and nothing else". You know, 4 seasons - June, July, August, and Winter.

Anyway, the traditional school of thought is higher pressures in the winter. Roads are likely to be icy. The higher the pressure, the lower the contact patch and the higher the traction.

Of course, when you get to the off-road part, or any road unplowed (or any road where I grew up), lower pressure is preferred to help float over the snow.

So, I agree wit karls: 1- increase pressure to increase the amount of pressure per inch of tread on the ground to keep you in contact with the snow/ ice 2- lower pressure to 'float' over the snow, but it certainly won't help you with ice

 

when it is not snowing it is icy lol. I just know after 40 years of driving in the winters worst conditions what works for me. I think the best thing a person can do is find what works for them. I have tried both high and low. Now by low I am not talking 10-20lbs I am talking 28-30psi.

 

I know I have had tires that did way better in the snow and ice when they were at max pressure. They were all weathers on a car so I am talking 35psi. If they went down around 30 I could tell as I slid around more and had a harder time taking off. I think you should try them at different pressures and I bet you will find what works for your tires. I think I need to air my nitto trails up a little right now.

 

Quick piggyback to this thread.. Does '08 have tire pressure light? Took mine in thinking alignment was needed but was told pressure was just off balance. Added air and voila! Just wondering... Thnx.

 

thanks for the replies, i will add a couple more psi sometime this week. great replies and thanks for the help. cheer and be safe out there