Demagnetizing Tires

[cvillechopper]

Originally Posted by themeatmanlandry

The main reason I don't run nitrogen in my tires:

Say your car catches fire while you're on the freeway. You're running 60 mph . . . on fire. Now say you have an active bee hive in the backseat, next to your great-great-grandmother, who although she's not particularly scared of the bees, is allergic to beestings. Now, say she's holding the handle on a pin-less hand grenade and you were on your way to the local army base to get some assistance in, you know, NOT getting blown to bits. Now say your great-great-grandma's got hte shakes and can't hold the grenade handle, manage the bees and fight the fire all at once and she winds up dropping the damned thing. You, in your present mindset, are NOT prepared to deal with a live hand grenade in the car and you make the conscious decision to leave the old bag in the car with the grenade and take a dive . . . except you were driving near the ocean and you wind up in the drink just as your car explodes.

If, in the off chance that one of the car's bumpers were to become ensnared around your neck, thus dragging you to the bottom of the ocean, just as a couple of your car tires came plunging in with you . . . you'd only have the contents of those tires to keep you alive until someone summoned help.

Now I ask you: Which would you rather have in your tires? Good old air, which you can breathe, or some &&&&ty nitrogen?

THAT'S why I don't put nitrogen in my tires. A similar argument can be made for not demagnetizing your tires.

If I only had a nickel for each time that's happened...
Of course, after the third time we took my grandpa's hand grenade collection out of the assisted living apartment since they had no training on that type of thing.
On the plus side, getting pulled over at that point only gets you a terrified look and frantic wave to continue on.

[Thundurburd]

Yeah, the magnetized steel belts in the tires could be attracted to the rebars in the roads thereby slowing you down. Of course everybody knows that's only if you're going north/south, if you go east/west then it can speed you up. The effect is offsetting.

Therefore it's obviously a scam.

[Alan_Hepburn]

Originally Posted by Easy Rider

Who was it that said: You can fool SOME of the people ALL of the time.....

Why not offer to fill his tires with something even higher tech - find a shop that uses a mix of 78% nitrogen, about 21% oxygen, and some other trace gases and convince him that those other gases, in combination with the nitrogen, have proven to not only be easier to find while traveling than pure nitrogen but are also more environmentally friendly ...

[inspiron]

You know, Alan, mixing those gases can be pretty expensive! I'm sure we'd have to charge someone some serious coin for such an exclusive mixture!

[geoffsimpson]

Originally Posted by themeatmanlandry

The main reason I don't run nitrogen in my tires:

Say your car catches fire while you're on the freeway. You're running 60 mph . . . on fire. Now say you have an active bee hive in the backseat, next to your great-great-grandmother, who although she's not particularly scared of the bees, is allergic to beestings. Now, say she's holding the handle on a pin-less hand grenade and you were on your way to the local army base to get some assistance in, you know, NOT getting blown to bits. Now say your great-great-grandma's got hte shakes and can't hold the grenade handle, manage the bees and fight the fire all at once and she winds up dropping the damned thing. You, in your present mindset, are NOT prepared to deal with a live hand grenade in the car and you make the conscious decision to leave the old bag in the car with the grenade and take a dive . . . except you were driving near the ocean and you wind up in the drink just as your car explodes.

If, in the off chance that one of the car's bumpers were to become ensnared around your neck, thus dragging you to the bottom of the ocean, just as a couple of your car tires came plunging in with you . . . you'd only have the contents of those tires to keep you alive until someone summoned help.

Now I ask you: Which would you rather have in your tires? Good old air, which you can breathe, or some &&&&ty nitrogen?

THAT'S why I don't put nitrogen in my tires. A similar argument can be made for not demagnetizing your tires.

....................ow..........landry make geoff's brain go boom

[SuzukiBD]

The only things I believe work are to keep your tires inflated properly and slow down.

One other.....try not to use your car at all as much as possible. Now THIS is what I call saving gas.

[omegajim]

there is not enough metal in your tires for a good de-gaussing to make a difference (aka demagnetizing).

on the nitrogen track, I believe in the coming years this will gain popularity for several reasons, among them.
1) nitrogen molecules are slightly larger and are said to not leak out through the rubber sidewall
2) nitrogen is said to be a better coolant for the hot tire.

but, in conclusion, if inspiron, you can't find any useful info on tire demagnetizing(degaussing) there's probably a very good reason. There isn't any.

[Davecm203]

If you demagnetize the tires, won't they just simply become magnetized again after they are driven on again?

I thought the main reason for the nitrogen is that it is less effected by temperature and so tire pressures stay more consistent.

[falcon]

What makes a tire stick to the road...MAGNETISM.....degmagnetise them and they wont stick..

Main reason for nitrogen in tires is that the pressure changes very little with temp which is why its used in racing.

[buster]

Originally Posted by falcon

What makes a tire stick to the road...MAGNETISM.....degmagnetise them and they wont stick..

AHA! Hit it right on the head! Good call sir. So it is a scam, you have your tyres demagnetised, you lose most of your traction, you go back to the same tyre Johnny and buy a new set of tyres and hey-ho, over and over again.

[Hmm.... "Buster's tyre demagnetisation facility" has a lucrative ring to it]

[themeatmanlandry]

Originally Posted by falcon

What makes a tire stick to the road...MAGNETISM.....degmagnetise them and they wont stick..

Main reason for nitrogen in tires is that the pressure changes very little with temp which is why its used in racing.

I was waiting on that. In racing.

As we slowly switch to nitrogen-filled tires, I guess we can start to see OPEC lose its grip, right? Surely all that ado is leading up to something, right folks?

Wait . . . you mean . . . we're not seeing any advantage? Gas prices are unaffected by the whirlwind of nitrogen-filled tires and improved efficiency? So, it could be that we're all just fools that will fall for the latest sales pitch?

Oh, no!!!! The gullible American consumer is once again cast as the court jester.

[James Brown's "Living In America" plays]

[aeagles]

try demoralizing them instead...

[buster]

So.... okay .... I'll do it.

Why do racing cars have nitrogen filled tyres?


Anybody?

[themeatmanlandry]

Originally Posted by buster

So.... okay .... I'll do it.

Why do racing cars have nitrogen filled tyres?


Anybody?

No water vapor means less expansion under heating (water gets big as it evaporates). My understanding is that this results in a more consistent machine between qualifying day and racing day.

I don't buy that it dissipates heat any better than air, and I don't buy that the holes in rubber are *just* big enough for an oxygen molecule to slip out, but not a nitrogen molecule.

Oxygen molecular diameter: 0.29 nanometers
Nitrogen molecule diameter: 0.21 nanometers

I'm sure others will offer up their opinions, but that's mine.

[EDIT] Not sure why they don't just use bone dry air. It may be cheaper to buy nitrogen.

[buster]

Originally Posted by themeatmanlandry

No water vapor means less expansion under heating (water gets big as it evaporates). My understanding is that this results in a more consistent machine between qualifying day and racing day.

I don't buy that it dissipates heat any better than air, and I don't buy that the holes in rubber are *just* big enough for an oxygen molecule to slip out, but not a nitrogen molecule.

Oxygen molecular diameter: 0.29 nanometers
Nitrogen molecule diameter: 0.21 nanometers

I'm sure others will offer up their opinions, but that's mine.

[EDIT] Not sure why they don't just use bone dry air. It may be cheaper to buy nitrogen.

So then, does dry air expand any quicker or to a greater volume than nitrogen when both are exposed to the same rate/rise in ambient temperature?

I'm not trying to be a smarty, but given that wee bit of info above, I would agree with the dried air thing.

Does high pressure nitrogen attact condensation when allowed to flow through pipework the same as air?

This has just opened a can of questions and spilled them all over my desk..

We use Nitrogen to purge the airways on navigation equipment, and to be honest I always assumed it was innert stability of nitrogen that was the selling point for this application, we also use nitrogen to drench the atmosphere in firefighting applications.. It is very effective.

[inspiron]

Using Nitrogen or CO2 to fight fires is okay, as long as no one is in the room without breathing equipment. Flooding the room with inert gas will remove the oxygen from the flames, essentially suffocating them. But if anyone is in the room without a SCBA, they too will suffocate.

[themeatmanlandry]

Originally Posted by buster

So then, does dry air expand any quicker or to a greater volume than nitrogen when both are exposed to the same rate/rise in ambient temperature?

I'm not trying to be a smarty, but given that wee bit of info above, I would agree with the dried air thing.

Does high pressure nitrogen attact condensation when allowed to flow through pipework the same as air?

This has just opened a can of questions and spilled them all over my desk..

We use Nitrogen to purge the airways on navigation equipment, and to be honest I always assumed it was innert stability of nitrogen that was the selling point for this application, we also use nitrogen to drench the atmosphere in firefighting applications.. It is very effective.

Not sure about the relative affinities for water of pure nitrogen versus bone dry air. I would assume they differ, but to what extent I'm not sure. I would be surprised if the difference was not negligible.

As far as expansion goes, I believe that they would both expand at the same rate for a given temperature rise. That said, the heat capacity of the two gases may differ enough (not likely since air is 78% nitrogen) to be measurable. That is to say that one gas *may* absorb more heat without showing the same temperature rise. Again, I doubt it.

[Sgt Mike]

Anybody interested in a 120mpg fuel injection system for any type of vehicle?
How about a carburetor that will give the same results? Imagine what kind of fuel mileage you'd get demagnetized tires. Grimm's junkyard sells all those services, if you can find the junkers that came equipped with those options from the big three.

[inspiron]

I think I'm going to ask Al Gore what he thinks. Then I'll ask Michael Moore. Then I'll ask Ralph Nader. And then I'll just forget the whole thing.

[themeatmanlandry]

Originally Posted by inspiron

I think I'm going to ask Al Gore what he thinks. Then I'll ask Michael Moore. Then I'll ask Ralph Nader. And then I'll just forget the whole thing.

That's easy . . .

Al Gore: I invented nitrogen. It is safe for the environment. I intend to someday run nitrogen in the tires of my Hummer 4X4, which runs on Screech Owl oil, and I recommend that everyone BUT ME make a move in the nitrogen direction today, regardless of cost.

Michael Moore: Nitrogen was invented by the white male majority dictators that we 'voted in' years ago. It does not even exist, and it is the reason that my family and friends can't find a job.

Ralph Nader: Will it get me votes? If so, I'm in.