Nope. You dont run 35 PSI on a 1 ton Ford, or Dodge. You sure dont do it
with Firestone Steeltex, or Michelin E rated tires. They are designed to
have, 80PSI on a cold tire, unloaded.
You add in racks, parts, tools, etc, and you have tossed one hell of a load
on the tire.
Now, to overcome sidewall flex, and wear on the outer edges, you simply go
to the maximuim inflation pressure, and thats 95-100PSI.
My car tires, as information, depending on the tire, rim size, and
application, can have as little as 15PSI in them, or as much as 50.
Passenger car tires also are NOT filled to the pressures listed on the
sidewall, but to the pressures listed on the data sheet for that particular
model. The rating on the passenger car tire that you see, is the MAX
inflation that the particular tire can take. You do NOT run 35PSI in
say...the rear tires of a 911, unless you enjoy having the rear sling around
on you in a hard turn with your foot off the gas.
a 245-80-16-E can take it. and have for years. We average 75,000 miles on a
set, and have gotten more....not bad for a multitude of drivers, diffferent
weights, road conditions...etc.
Nope. We started this when 80PSI was creating a soft ride condition, and
excessive wear on the rear tires. Braking is fine, and handling is much
Umm..its an inert diatomic gas.
Seriously...correct me if I am wrong..I mean..since its the only approved
gas for brazing to reduce oxidation in the field I am in, and one of those
guys that we have to see for at least 6 hours a year to keep our licence
that have more chem experence than me just might be wrong....but I doubt it
Nitrogen is not inert. However, it's very nearly inert in many applications.
That's why it can be considered inert much of the time.
Inert gases do not react chemically with other elements - helium, xenon, neon,
krypton, argon, radon are inert. Nitrogen will react with other elements
and form compounds. However, the fact that many of them are not greatly
stable (many explosives, rocket fuel etc) shows how much nitrogen would
rather not form a bond with other elements.
BTW, I've never heard of N2 being used in tires for any reason other than
the fact that N2 is less permeable than O2 and thus the tires don't have
to be re-inflated as often. Hearing other reasons is interesting.
Ok...teach me something here...
If its not inert, why does EVERY instructor, every contractor in HVAC that
has a clue, and every thermal dynamics course state that it is, and THATS
why we use it when we braze copper at over 1800F? Zero reaction with the
copper, or the filler material.
Also, looking at my ARI manual, it sure as hell states, to use inert
Nitrogen flowing into the pipes when brazing...
Also, when I worked in Germany at MBB, we were told it was inert, and thats
another reason we used it for other apps than just in the tires.
Your pusillanimous critic has a 1950s high school chemistry background,
where they told you only the "noble gases" were truly "inert". In fact,
some compounds have been discovered. So nothing is absolutely inert.
Nitrogen *is* inert inside a copper pipe at brazing temperatures. That is,
it doesn't react with the copper (or the oil residue in a HVAC system).
I use CO2 instead of N2 for this purpose. It works as well, is cheaper,
less hazardous (lower tank pressure), and has swell household uses
i raced a 24 hour endurance at Nelson Ledges (OH) many many years ago on a
i think we filled up the tank 20 times in one day and the tires 3 times.
i never said i couldn't afford to drive it. i'm looking at fuel savings, not
an opinion on needs.
i wanted to know if N2 tires did anything to improve gas mileage. if gas
mileage was my main concern, i would have purchased a sub-compact car (or a
i drive a durango and my wife just bought a suburban (z71).
i can afford it, but you are correct on the internet service. 2-way
satellite is very expensive and not worth $70/month.
and thanks for your input on N2 tires...
Nitrogen doesn't expand as much as air as temperatures increase
and it is usually dryer (less water) so the inflation pressure of your
tires won't change as much and possibly affect rolling resistance.
Stated another way, your cold tire pressure will be higher and will
require less horsepower to move your car. But... I doubt very
seriously you will ever see a difference if you keep your tires
properly inflated in the first place. Two things most people don't
do is change the oil or check their tires. Why do you think all those
SUVs roll over so often? Ever notice how many cars on the road
(and at 80+ MPH) have one or more tires bulging at the bottom?
Race car tires often are inflated with nitrogen or even helium
because the cold to hot temperature ranges are pretty extreme.
It effects tire grip, longevity and consistency so the extra cost is
worth it to most racers.
Hope this helps answer your query. If you really want to get
better gas mileage just press down on the go peddle more lightly,
mind the speed limit signs or car pool and share the cost.
Stupid idea. Normal air is 78% nitrogen. At best, using pure
nitrogen might reduce oxidation on the inside of the tire over a
period of several years. Of course, the outside of the tire will wear
out long before then.
To reply, please remove one letter from each side of "@"
Spammers are VERMIN. Please kill them all.
Just filling a tire will not give you a 100% N2 atmosphere inside.The tire
has to be emptied and refilled with N2 several times to purge the 'normal'
atmosphere left inside when the tire was mounted on the rim.
The N2 is drier than what comes out of most compressors,especially the ones
at filling stations(how well are those maintained,tanks drained,etc.?)
Water,O2,carbon in the tire,steel/Aluminum in the rim, all will react where
N2 would not.A corroding rim will leak faster,not seal as good.
Nitrogen in the tires won't increase the gas mileage significantly
(i.e., at least 5%) or insignificantly.
The propeller-like device is sold under the name "Tornado" and was
found in tests done by Consumer Reports to give no significant
improvement. If such devices did help, don't you think car makers
would mold them into the plastic intake pipes, which would cost
virtually nothing? Earlier, Consumer Reports tested certain spark
plugs and found that they also made no difference.
Either learn to live with your SUV mistake or join a car pool.
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