I heard of this for awhile, any one done this ?

This is an offer from a local Pontiac dealer.


Hurry This Offer Ends 8/31/08

Our New Gas Saver Specials Are HERE.
(Just print these coupons and present them to your service advisor.)
*Tax and environmental charges extra.




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Tire Care
Rotate & Nitrogen Fill, Check Tire Pressure, Inspect for Irregular Wear & Damage
Only $37.95 Most Vehicles, Expires 8/31/08




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Service Special
Replace Air Filter, Clean Throttle Body, Inflate Tires ewith Nitrogen
Only $99.95 Most Vehicles, Expires 8/31/08




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Tire Rotation (All 4 Tires)
Only $8.00 Reg. $15.00, Expires 8/31/08




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Increase Fuel Efficiency
Install Nitrogen in your Tires!
Increase Tire Life, Safety & Improve Handling
Only $29.95 Expires 8/31/08


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I think we should fill our tires with helium so our cars will float more, then we'll get better mileage.

LOL Either will work. It's all about being VERY dry.

We sell H.P. and liquid nitrogen as well as all other industrial gases. 30 bucks to fill your tires is OUTRAGEOUS! We sell a liquid cylinder of about 4066CF of nitrogen for about 185.00 bucks which is straight list price. Not sure what a tire holds for C.F. but I bet I could fill a weeks worth of tires at a busy Goodyear with one tank...

They are making some moola off ya

I have a 90cf high pressure nitrogen in my garage I use for all my tires on my bikes and my cars. No compressor to run so it's nice and fast. Turn on valve, fill tires.:)

LOL Either will work. It's all about being VERY dry.

We sell H.P. and liquid nitrogen as well as all other industrial gases. 30 bucks to fill your tires is OUTRAGEOUS! We sell a liquid cylinder of about 4066CF of nitrogen for about 185.00 bucks which is straight list price. Not sure what a tire holds for C.F. but I bet I could fill a weeks worth of tires at a busy Goodyear with one tank...

They are making some moola off ya

I have a 90cf high pressure nitrogen in my garage I use for all my tires on my bikes and my cars. No compressor to run so it's nice and fast. Turn on valve, fill tires.:)


Do you feel like you get better MPG from doing this ?

Do you feel like you get better MPG from doing this ?

Never paid attention.

I get the nitrogen for free. I just take a cylinder when I need one.

It was more for convenience than anything.

I'll try it on the G8 when I get it. I'll jack it up to put the exhaust on and will remove all the air and add nitrogen to the tires.

Chris

Never paid attention.

I get the nitrogen for free. I just take a cylinder when I need one.

It was more for convenience than anything.

I'll try it on the G8 when I get it. I'll jack it up to put the exhaust on and will remove all the air and add nitrogen to the tires.

Chris

How long does a 90CF cylinder last you?

I think we should fill our tires with helium so our cars will float more, then we'll get better mileage.

Don't you know anything?

You fill the FRONT tire with Helium, for better weight transfer.

Sheesh.




















:wink2:

Helium diffuses readily through rubber - hence using aluminized mylar in helium balloons - and we all know what even those look like after a few days (way worse in a latex helium balloon)....

Apparently, you would save 3lbs using helium over nitrogen in an airplane tire (huge tire at 247PSI though) - but it's not cost effective for the above reason

nitrogen is a scam, just like any flush an independent or dealer tries to sell you on. dont do it.

Goodyear does it for $5 per tire, for life.

nitrogen is a scam, just like any flush an independent or dealer tries to sell you on. dont do it.

It's not a scam. There are definite benefits to filling your tires with nitrogen. You won't get better fuel mileage because of the nitrogen, but nitrogen seeps out of tires at a much slower rate than air, which means your tires tend to maintain proper pressure for a longer period of time, thus ensuring better fuel mileage from properly inflated tires.

Tires inflated with air tend to lose about 1 psi per month, and will fluctuate 1 psi for every 10 degrees of ambient temperature change. Because nitrogen is dry (as mentioned previously), it does not fluctuate with ambient temperature changes. Nor does the pressure fluctuate much from cold to hot psi readings. I've used nitrogen in several vehicles for several years and I find it to be beneficial.

Additionally, the dry nitrogen will help extend the life of the TPMS sensor. Using air (especially air hoses from gas stations) contains water in the lines which can, over time, foul the sensors.

Most places around where I live charge $5-8 per tire, but if it's part of a rotation package, $37.95 isn't a bad price. You could pay that much just for rotations anywhere, especially for a car with TPMS that take extra time to reset.

A lenthy be interesting contray point of view to nitrogens value:

"But a closer examination of the facts makes some of the claims for nitrogen seem at best anecdotal or illusory for everyday drivers.

First, the air around us is already 78 percent nitrogen, with 21 percent oxygen and 1 percent other gases. So going to pure nitrogen only squeezes out a small amount of the oxygen molecules that nitrogen proponents argue are so detrimental.

Also, the advantage of nitrogen being more stable and less prone to changes in pressure due to heat in the tires seems of little benefit to average drivers. Race teams use it because they can change the handling of the car by adjusting individual tire pressure by as little as a quarter pound. So having a gas that's ultra stable has real benefits when dealing with such small degrees.

Nitrogen proponents say that the nature of the gas means it's less prone to leaking out over time through the pores present in rubber tires. But most air leakage in tires can be traced to poor fit around the rim of the wheel or the valve stem, rather than gas permeating through the rubber.

Claims of nitrogen being more friendly to the rubber and wheels is also questionable, since most tires wear out the tread on the outside long before the inner rubber would go bad from exposure to oxygen. The same factors hold true for wheels, many of which are made from alloys, not straight steel. You're far more likely to damage a wheel from hitting a curb than see a wheel go bad from oxidation.

A good site that takes a contrarian point of view on nitrogen in passenger car tires is www.eng-tips.com, which is run by engineers.

When it comes down to a dollar decision, it's hard to argue that spending as much as $40 for nitrogen in a set of tires is a good fiscal move."{

It's not a scam. There are definite benefits to filling your tires with nitrogen. You won't get better fuel mileage because of the nitrogen, but nitrogen seeps out of tires at a much slower rate than air, which means your tires tend to maintain proper pressure for a longer period of time, thus ensuring better fuel mileage from properly inflated tires.

..the air around us is already 78 percent nitrogen, with 21 percent oxygen and 1 percent other gases. So going to pure nitrogen only squeezes out a small amount of the oxygen molecules that nitrogen proponents argue are so detrimental.

:wink2:

It's not a scam. Aircraft tires have been filled exclusively with nitrogen for many years. Is it worth the price for your car? I'd say no.

Keep in mind that the engineering requirements for aircraft are not the same as those for cars. It is not clear to everyone that nitrogen is a bottom line benefit. I would not pay a lot to have it in my tires, although I have had it in several tires from Costco...where it is free with the tire.

Keep in mind that the engineering requirements for aircraft are not the same as those for cars. It is not clear to everyone that nitrogen is a bottom line benefit. I would not pay a lot to have it in my tires, although I have had it in several tires from Costco...where it is free with the tire.

Agreed, I fill my tires with air. It's not worth the cost. If I got it free, yes, I would use it.

It's not a scam. Aircraft tires have been filled exclusively with nitrogen for many years. Is it worth the price for your car? I'd say no.

aircraft tires are inflated to 247 PSI. Tolerances and performance required from these tires is much higher

Actually it depends on the wheel/tire what the pressure is but yes, most are very high. You put the tire in a cage to fill it because most wheels are 2 piece and if it comes apart it will blow you to pieces. The fact that filling car tires with nitrogen is not needed was my point all along; it's not worth the cost. That doesn't mean it's not better if you had a free supply.

A lenthy be interesting contray point of view to nitrogens value:

First, the air around us is already 78 percent nitrogen, with 21 percent oxygen and 1 percent other gases. So going to pure nitrogen only squeezes out a small amount of the oxygen molecules that nitrogen proponents argue are so detrimental.


But it is that 21 percent that makes the air mixture somewhat volatile. Is it worth $30 to someone? Perhaps. By the time you factor in longer tire wear and fuel mileage savings for those who aren't as maintenance-conscious, I wouldn't be surprised if the cost of the nitrogen paid for itself. I'm sure that's worth $30 to some people.

People have been arguing both sides for a few years now, and there's people who make good arguments both ways. I've used nitrogen in several cars for the last 3 or 4 years. I find it beneficial for me and that's really all that matters. As far as the "leakage" issue goes, that's hogwash. Most of my cars had metal valve stems and I did tests with both air and nitrogen. The nitrogen had the same pressure 6 months or more later without having to top off.

I probably won't use it in the G8, though because the staggered front/rear pressures makes adjusting the pressures after a rotation means a trip to the tire store for a nitro top off. I'd rather just use the compressor in the trunk as I do my own rotations.

Personally, I wouldn't pay $30. Because I work in the tire industry, I tend to get it for free. :wink2: But I wouldn't call nitrogen a "scam."