Trailer tire pressure
 

I was checking the tire pressure on my triple axle Myco trailer today and I'm confused. The trailer has a sticker on it that lists the size of each tire and it calls for 110 psi in each of the tires. I've got the specified tires on the trailer but the tires themselves show a maximum pressure of 60 psi. 110 psi seems way too high to me and its way over what the tire manufacturer recommends. Is this rating plate on the trailer a misprint? Anyone else ever run into something similiar? Please let me know. Thanks

What size and load range are the tires

To expand on what Splash said. First of all does the tire size and load range match what is on the sticker?

110 psi does sound crazy. My trailer just has stickers that say "Check Tire Pressure". I think mine are also 60 max.

I have the exact same sticker on my Myco trailer and just assumed that because the tires were supporting all of that weight that the pressure right. I hope it is because mine are inflated to 110 psi.

Max tire psi listed on tire trumps everything else.

I agree. Either a different tire is on the trailer than the trailer should have, or the trailer co fu*cked up and put wrong decal info on.


Never, ever, ever put more air psi in a tire than its max value primted on the tire says. You never want a tire (they are made of rubber and steel and other compounds) blowing out into your ribs or face. Bad !!!!!

These are the original tires that Myco supplied with the trailer from the factory. Exactly what they call for on the sticker. This has to be a misprint on the original sticker on the trailer, right?

Don't go off the trailer, only go off the tire. Trailer manufactures, previous owners, dealers...all change tires around on their trailers. Read the sidewall of the tire and go with that psi, you will never be wrong. Just be sure your tire is rated to hold the load you're pulling.

I keep 50 psi in mine -- I was told to keep the maximum pressure in them

3pointstar

Mine are rated at 50 psi and I keep them at 45. Myco is flirting with a lawsuit because of that sticker ...

What size and load range are they?

My brand new triple axle hertiage trailer came with 235/85R16 Goodyear G614's load range G. They can be inflated to 110 psi. However, my sticker on the trailer says 245/75R16 at 80PSI to carry the load. Every time I look at it I think the same thing that is a lawsuit waiting to happen. With the 235/85R16's I actually need 90psi to carry the load. I haven't taken the wheels apart but I am guessing they are only rated to 80PSI like most of the wheels too. Hard for me to understand that they can be that clueless about proper ratings.

Load range G or H 110 psi. E 80 I just changed all my 16" marathons to 17.5 Load range H. We will see how the tire life does now!

Sometimes it's ok... Goodyear published this Service bulletin recommending 10psi over max on marathons. Like others have stated, run max sidewall pressure, unless you have the tires listed in the link below, then add 10psi.
https://www.tirerack.com/images/tire...plications.pdf

On the trailer, I run 5 lbs. less than the max inflation pressure listed on the TIRE. Tire pressures increase with heat. Even though they list "cold" tire pressures on the tires, I like a little buffer.

I read it different from you.

I can't find the exact pdf I saw a few years ago, but it specifically called out 75 psi on "65 psi" tires. Remember all my tire issues on long highway trips? 75 psi, problem solved.

Slightly related question. When your 3/4 truck is not loaded/ towing can you run lower pressures just to improve the ride?

Yes.

How much would you drop them? Down to 35psi or so, similar to 1/2 ton pressure?

I prefer 45-50psi. You may like something different. Over 50psi I can't stand the ride....which a lot of it is dirt roads and broken pavement. Oh, winter traction suks with a lot of air pressure.

My concern is altering the contact patch and getting excessive wear from running them at such a pressure difference. I know I've negatively impacted wear on wider car tires with different pressures.

My dmax calls for 60 psi in the front, and 80 psi in the rear tires. Just drop it down to match the front.

I never do, however, because i'm lazy.

The reverse happens around here. Most trucks get used as trucks. People lazy out and don't inflate them back up when they really need to.

I have seen no increased wear...but your mileage will vary. I do however see more ball joint wear and etc with inflated up tires, but again, you'd schit if you saw the roads in my area of town....and some mountain road short cuts we take a lot.

Oh, and bringing the pressure down unloaded will also help braking and turning when hitting bumps. Big difference.

I can't stand the ride of a stiff truck....those days are long gone for me...thus why have had Chevy's predominently for a long time.

The reverse happens around here. Most trucks get used as trucks. People lazy out and don't inflate them back up when they really need to.

I have seen no increased wear...but your mileage will vary. I do however see more ball joint wear and etc with inflated up tires, but again, you'd schit if you saw the roads in my area of town....and some mountain road short cuts we take a lot.

Oh, and bringing the pressure down unloaded will also help braking and turning when hitting bumps. Also dramatically in rain, snow, mud, and dirt. Big difference.

I can't stand the ride of a stiff truck....those days are long gone for me...thus why have had Chevy's predominently for a long time.

Yes you can. If you have a diesel I would be careful on lowering the front lots of weight up there. My 2015 3/4 Dmax calls for 60 in the front and 75 in the rear. For 8 months out of the year I rarely have a significant load on. So I run 55 in the front and 65 in the rear.

Sounds like the old ford engineer for explorer is now doing spec for trailer companies