That's what I don't remember. Back then people were beginning to inflate with nitrogen because it was supposed to be stable regardless of temperature rise or drop.And the formula is...
That's what I don't remember. Back then people were beginning to inflate with nitrogen because it was supposed to be stable regardless of temperature rise or drop.And the formula is...
It makes the nitrogen supplier money. What's important is that the compressed gas is dry. Our air is 99% nitrogen and oxygen; each obey the same gas law within experimental error.That's what I don't remember. Back then people were beginning to inflate with nitrogen because it was supposed to be stable regardless of temperature rise or drop.
notes:
| |||
---|---|---|---|
If air is not dry: | |||
Name | Formula | in ppm(B) | in % |
Gas | Mole fraction(A) | ||
Dry air | |||
N2 | 780,840 | 78.084 | |
O2 | 209,460 | 20.946 | |
Ar | 9,340 | 0.9340 | |
CO2 | 417 | 0.0417 | |
Neon | Ne | 18.18 | 0.001818 |
He | 5.24 | 0.000524 | |
CH4 | 1.87 | 0.000187 | |
Kr | 1.14 | 0.000114 | |
Water vapor(D) | H2O | 0–30,000(D) | 0–3%(E) |
How noisy is the M18 inflator? Think quiet Sunday morning, family not awake yet, which is when I often check and top off 5-6 vehicles.The Milwaukee M18 inflater is a wonder of engineering. Will have no excuse to keep all of the fleet aired up at all times. What was annoying now takes a fraction of the time. Connect, hit buttons, wait 30 seconds to a minute, hit a button, reconnect, rinse repeat.
I'm glad it all works for you. The only time I air down is if I'm at the beach. I don't do much other off road.Swapped to my "winter" tires on the H3 last night after thanksgiving festivities as the snow started to fall.
Door Sticker: 35PSI for 285/75R16 LT because 35PSI is the "minimum" for LT tires and universe ending paradox occurs below 35PSI... or something...
I run 315/75R16, which, at 35PSI would carry a 10K lb truck. I adjust/set pressures regularly depending on what the vehicle is being used for:
33-38PSI: Sustained highway travel at ~75MPH. Safe road trip pressure for hot weather.
28-32PSI: Fair and wet weather daily driver for shorter trips and mixed driving, occasional highway use.
15-20PSI: Cold weather with expected snowpack/ice or unplowed snow up to ~8" depth. ~45-60MPH Max.
11-14PSI: Fair/Hot weather offroad, rocks, washboards and cold weather with 8-16" of unplowed snow expected on roads, up to ~30-40mph max.
8-10PSI: Fair/Hot weather bottomless sand. Cold weather and unplowed snow measured in feet, up to 20-30mph.
Snowpack/ice on roads today so I set 19PSI front and 17PSI rear. Good results.
And be sure to check the tire itself too. Found this after about 7 years in the trunk.I'll throw one in to this as well. If you have a Space Saver spare, it's supposed to be 60 psi. If you don't check it every oil change it won't be anywhere close to that.
I've tried metal valve caps, replacing the valve core, nothing helps other than checking and inflating.
10psi? Usually they come on when only like 3 psi low hence why it's just another idiot light in the dash that gets ignoredHello, GOOD ADVICE except
1) People are frequently sooooooo lazy
2) "I can't be baaaaaathuurd"
3) "I never did that before!"
4) "I'm a brain surgeon, my tires don't loose air."
Kira
ALL gases lose pressure with a drop in temperature. The Combined Gas Law. Nitrogen has an advantage in that it doesn’t leak as quickly, and as a noble gas, will not react chemically with rubber, steel, etc. I will usually go a little high at the air hose, then check them the next morning & adjust them down if necessary. I’ve seen the rears go over 90 on the Transit on a long, hot summer Interstate run. Next morning they’re right back down to 75!That's what I don't remember. Back then people were beginning to inflate with nitrogen because it was supposed to be stable regardless of temperature rise or drop.
Great minds think alike. Since I do the Costco nitrogen I too overinflate by maybe 3-4 psi. And check next morning and let some out. Why? It’s already hot when I’m there. Also I can’t add nitrogen at home.ALL gases lose pressure with a drop in temperature. The Combined Gas Law. Nitrogen has an advantage in that it doesn’t leak as quickly, and as a noble gas, will not react chemically with rubber, steel, etc. I will usually go a little high at the air hose, then check them the next morning & adjust them down if necessary. I’ve seen the rears go over 90 on the Transit on a long, hot summer Interstate run. Next morning they’re right back down to 75!
That is a great site. Thanks for posting.I would say that if your tires are increasing from 75 to 90 lbs that they are overloaded. Check out barrystiretech.com. and read the pressure buildup test article.