trailer tires question

imported_rusty

Petty Officer 2nd Class
Joined
Jun 27, 2005
Messages
186
i took off my trailer tires and put them in the shed for the winter its unheated but anyway should i deflate the tires? oe leave them at the proper psi . ?
 

BLLDOGG

Seaman
Joined
Nov 13, 2006
Messages
70
Re: trailer tires question

isn't just the sun exposure that is the issue, not the temps too?
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: trailer tires question

By golly I live in Minnesota and my car and truck tires survive for 60,000 miles when winter temperatures get down to -35F. I think your tires will survive nicely in a shed -- cold or not. Just make sure to put winter air in them and then replace that with summer air in the spring!
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,549
Re: trailer tires question

I would drive up to the mountains and put air from up there in them. Nothing like the smell of pine tree air.
 

jtexas

Fleet Admiral
Joined
Oct 13, 2003
Messages
8,646
Re: trailer tires question

cantcha get that pine tree air at autozone?
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: trailer tires question

Yes, but its hard stuffing that pine scented air freshener into the valve stem.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: trailer tires question

You folks questioning the effect of temperatures on tires have no idea what cold is. Does it even freeze in Oklahoma? Our ground can freeze down to 42-inches up here and we don't wear jackets until the temps fall below freezing. We don't usually wear them, but we take them with us in case the locks are frozen when we return to the vehicle after shopping. Did you know you can test how cold it is by sticking your tongue on a metal object? 8)
 

beneteau

Cadet
Joined
Oct 15, 2006
Messages
14
Re: trailer tires question

I've read a lot about inflating tires with nitrogen----just don't know if all the, so-called, benefits are true. If they are, wouldn't it be beneficial to inflate trailer tires with nitrogen? For one thing, it's stated that nitrogen inflated tires run cooler.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: trailer tires question

Although there are some benefits to using nitrogen in tires, for passenger cars and trailers its another way to separate you from your money. NASCAR (and the aircraft industry) use this technique to control tire pressures since the pressure change with temperature is less than using compressed air. Nascar adjusts tire pressures in 1/4 pound increments so limiting the amount of change is critical in their application. Using nitrogen will still result in tire pressure changes with temperature, although not as much as with air. It does not eliminate the need to monitor tire pressure which is the root cause of tire failure in the first place. Save your money (unless the nitrogen is free) and just check your tires regularly.
 

BLLDOGG

Seaman
Joined
Nov 13, 2006
Messages
70
Re: trailer tires question

lol....yeah, it freezes in Oklahoma but not like up there w/ the ground freezing deep
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
13,488
Re: trailer tires question

I don't understand the BS about nitrogen. Since air is already about 79-80% nitrogen, adding pure nitrogen, say 30psi to a deflated tire makes for about 94% nitrogen. Unless they pull a vaccumn on the tire and remove all the air they can not say there is only nitrogen inflating the tire.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: trailer tires question

I'm not a chemist and did lousy in Chemestry classes but nitrogen is the next "fad" or better stated, another good way to separate you from your money. There are applications for it but it's value for trailers, cars, and light trucks is questionable in my view as well. Nascar, the space shuttle, and the aircraft industry as I stated before are good applications. Just check the tires regularly and add good old smog-filled air as required.
 

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
13,488
Re: trailer tires question

I could maybe understand it on the shuttle, where the tires go from zero to 200 mph instantly, then all the heat from the brakes. Maybe it prevents the tires from catching fire and burning internally.
 

MrBigStuff

Chief Petty Officer
Joined
Aug 7, 2004
Messages
497
Re: trailer tires question

Like stated, it's a waste for normal passenger tires.

The idea is to use an inert, DRY gas. Water vapor increases pressure when heated. So the shuttle tires get very hot and could exceed the max pressure if not filled with inert DRY gas. Dry nitrogen is safe, plentiful and cheap to manufacture.

Anyway, I took it to the next level and filled my tires with unobtainium. I'm getting a zillion miles to the gallon and my tires look like new!
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: trailer tires question

Darn it MrBig -- now everyone is going to want Unobtainium. You and I and only a few others knew about it until now. I guess if they don't have the Thermothrockle to go with it no damage has been done.
 

Zackman

Petty Officer 1st Class
Joined
Dec 3, 2005
Messages
376
Re: trailer tires question

Don't forget the claim that N2 absorbs moisture. I use to have swampland in Louisiana, now thanks to N2; it's high and dry.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,549
Re: trailer tires question

The dryness claim that N2 has is that it starts out dry vs air from a compressor. All gas basically has the same moisture holding properties for a given temperature.

This is the requirement for airplane tires from FAR Sec. 25.733

(e) For an airplane with a maximum certificated takeoff weight of more than 75,000 pounds,
tires mounted on braked wheels must be inflated with dry nitrogen or other gases shown to be inert so that the gas mixture in the tire does not contain oxygen in excess of 5 percent by volume, unless it can be shown that the tire liner material will not produce a volatile gas when heated or that means are provided to prevent tire temperatures from reaching unsafe levels.
 

Docknocker

Petty Officer 2nd Class
Joined
Dec 20, 2006
Messages
180
Re: trailer tires question

OK, here's a dumb tire question - no matter what they fill the shuttle tires with, what keeps them from exploding as the ship climbs rapidly into 0 gravity? Are the landing gear bays pressurized?
 

stevieray

Lieutenant Junior Grade
Joined
Jul 18, 2006
Messages
1,135
Re: trailer tires question

Docknocker said:
OK, here's a dumb tire question - no matter what they fill the shuttle tires with, what keeps them from exploding as the ship climbs rapidly into 0 gravity? Are the landing gear bays pressurized?

Pressure differential between space & sea level on earth is only about 15 psi - hardly enough to make a tire explode (especially one rated for those landing conditions).
 
Top