CaptainAmericaRob

i'm currently at 35 PSI in my KO2's they are new, only 2 weeks old.
Snow is coming to my little corner of Michigan, just curious what everyone is running in snow.
thanks
Rob

BlackBoost

Currently 35, but anywhere from 35-40 psi is fine. For lots of ice and snow, 30-35 is better for a bigger footprint as long as you're not going highway speeds.

LoneWolfTrucker

I run 33-34 all around all year.

BleedingBlue15

Fwiw, and not to start another tire pressure thread, but these E rated tires require more pressure to carry the same weight. I have called BFG directly twice, and gave them all the specs of my truck. Both times they told me 50-55 psi minimum. It makes sense, as the max pressure is 80 psi. At 30-35 psi they are not even at 40% capacity. Would you run a max 51 psi tire comfortably at 20-25 psi? Something to think about, especially when you happen to haul anything.. 50 psi seems high to me, and I know they ride rougher and don't have as big of a contact patch, but I am putting my trust in what the tire manufacturer recommends over my personal thoughts. Just my .02

BlackBoost

If you're hauling then low psi is bad, but 50+ seems excessive. Says 35 on my door jamb. Nothing in the manual about higher tire pressure to haul loads. Higher pressures will not only give you a smaller footprint, but will wear the center of the tires faster. The best way is to do the chalk test. Google tire chalk test to see how to do it.

BleedingBlue15

I agree that a chalk test is a good way to go, but once you install E rated tires, especially ones that are bigger than oem, the door sticker specs go out the window..

BleedingBlue15

When Ford installs the 275/70r18's on the f250s, they recommend 65 psi per tire. At most the f250s only weigh roughly 500# more per tire at most than our f150s..

11screw50

The psi on your door sticker is for the factory supplied tires and provides enough load carrying capacity for the GVWR of the truck (so normally, you're running around unloaded and have excess carrying capacity) If you replace them with the same size and load range then it will still be correct however, he is right, if you have load range E tires, you need more pressure for them to be rated to carry the same weight as the factory tires (unless your truck came with load range E tires). Different sizes also require different pressure. Your truck's owners manual covers factory equipment, not any changes you may make.

https://toyotires-1524598101.netdna-...s_20151020.pdf

Read that.

And while a larger footprint in snow off road keeps you from sinking and getting stuck, on road you want the opposite because you want contact with the road. That is why winter tires are generally narrower than summer tires...

CaptainAmericaRob

thanks guys. taking towing anything out of the equation, and just driving in snow. i'm thinking the slightly lower psi is better for these tires, but BleedingBlue15, good comment about the load rating.
theres a lot that plays into psi.

thanks guys

BlackBoost

This is why I said the chalk test is the best way to know what pressure is best for a particular tire. Tires are designed to have full contact from side to side. If you have more wear on the outsides or the middle, it's no good.