pete black
Well-known Member
Bought a new set of tires today and paid $12 extra for the set to have inflated with nitrogen. Any thoughts?
(quoted from post at 22:24:37 01/23/17) You won't have to worry about adjusting the air pressure when the weather changes now. That's a plus.
(quoted from post at 02:46:16 01/24/17) Wasted money.
Ordinary air is 78% =/- nitrogen, 20% =/- oxygen, the balance makes up the other gasses, such as hydrogen, helium, carbon monoxide, carbon dioxide, etc.
More than you wanted to know- Ordinary nitrogen contains water vapor. "Oil Pumped" nitrogen is moisture free, but very expensive. Learned that in military communications. Older telephone cables have paper insulation, & are pressurized to keep moisture out in case of damage to the sheath. Accidentally introducing "water pumped" nitrogen when testing a splice or repair destroys the paper insulation, shorts out the circuits, & results in cutting out & replacing a section. If caught in time, only 10 feet or so, if not caught soon, maybe a mile or so.
All materials, whether in solid, liquid, or gaseous state, volume (pressure) varies directly with temperature.
Water (moisture) is unique. It contracts when cooled to 37 =/- degrees F, then expands when cooled further. The reverse occurs when warmed.
Willie
(quoted from post at 01:24:37 01/24/17) You won't have to worry about adjusting the air pressure when the weather changes now. That's a plus.
(quoted from post at 11:35:39 01/24/17)
I'm surprised there aren't any retailers out there selling helium-filled tires for the obvious advantage of making the car lighter.
(quoted from post at 09:20:12 01/25/17) Observations
- (It is drier than air.)
Is that not negated when a rag slop of soapy water is splashed all over the bead when the tire is being mounted?
-(The nitrogen molecules will not leak through the tire as fast)
If this is true and normal air is 78% nitrogen then why not fill tire with air, wait a few weeks until the 22% that is not nitrogen leaks out then top up again with air, you should now have 95%+ nitrogen.
(quoted from post at 12:48:33 01/25/17)(quoted from post at 09:20:12 01/25/17) Observations
- (It is drier than air.)
Is that not negated when a rag slop of soapy water is splashed all over the bead when the tire is being mounted?
-(The nitrogen molecules will not leak through the tire as fast)
If this is true and normal air is 78% nitrogen then why not fill tire with air, wait a few weeks until the 22% that is not nitrogen leaks out then top up again with air, you should now have 95%+ nitrogen.
Haven't seen a tire shop use soapy water in years.
You're stretching and twisting more than a pretzel factory in your second paragraph.
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