I just read that this will add 2 to 3 MPG.
Has anyone tried this?

you wont get better mileage by adding nitrogen to your tires. The same rule applies if you were to add air to a under inflated tire. A properly inflated tire will give you better gas mileage. the only benefit you will get with adding nitrogen is your tires will be less prone to losing pressure over time because the nitrogen molecule is larger. You will also get less corrosion inside the tire because it is dryer.

__________________
http://i148.photobucket.com/albums/s...titled-1-3.jpg
1981 300d

Tires oxidize from the inside out and N2 helps prevent this. Studies have shown that N2 greatly increases the life of the tires.

__________________
MB-less

Nitrogen may not increase your MPGs but it creates a wonderfully creamy head on draught beer.

__________________
Chad
2013 Jeep Unlimited Rubicon
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL

Unless you drive more than 10K a year, in which case the tires wear from the outside faster than they could ever deteriorate from the inside.

I should have said the wear from both sides. The rubber is manufactured with anti-oxidants in it to prevent the oxidation from the oxygen in the inside air. The anti-oxidants can and will be used up since there is no way to replenish them. Normally, the treadwear from the outside and the oxidation from the inside are racing towards each other. When the anti-oxidants are used up, the inside oxidation is greatly increased. This is why you see tires at a point that seem to wear disproportionately faster than they did early in their lives for a given mileage. For example the first 20,000 miles wore x amount of rubber but the second 20,000 miles wore 1.5X of rubber (numbers made up to illustrate the point).

A few years back studies on fleet truck tires (lots of miles) gained up to 50+% additional life when inflated with N2.

N2 also prevents rust of the metal components since there is no water vapor. Valve stems rust from moisture and this is what makes them leak, so you lose air and also MPG from that aspect as well.

__________________
MB-less

Yeah but you want them to wear better on the outside.

__________________
You don't need a weatherman to know which way the wind blows - Robert A. Zimmerman

They are not mutually exclusive and unrelated events.

__________________
MB-less

How do you go about getting nitrogen put into your tires? Can you buy it in a can or do you have to go to certain tire stores to get it, or what?

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

You can get it at any tire store where I live. Costs $6/tire.

Thanks. I'll have to get some tires for the SEC mounted soon, so Ill ask then.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

You gonna ask a tire salesman about nitrogen? Make sure to get the undercoating put on your tires too


It would be very easy to look up the thermal expansion rate of N2. The lexus dealer told me it was waaaaaaaay less than air so basically don't worry about any pressure change, however, after driving my wife's car 200 mi in 90+ degree weather, I noticed the tires were over-inflated (with pure nitrogen in them from the dealer). Thus, I released some nitrogen from the tires. When it cools off, I will fill them back up with air from my compressor.

I'm just having them mounted there, not buying them there. I get your point, though. They have nothing to gain by helping you to extend the life of your tires.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

I prefer nitrus oxide.

__________________
"It's normal for these things to empty your wallet and break your heart in the process."
2012 SLK 350
1987 420 SEL

What? All that bouncing and jiggling distracted me . . . .

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles