inflating tires on rv with nitrogen, good idea?

Sport45 wrote:
Are we supposed to think air inside the tire is more corrosive than the air outside the tire?

but if you fill it with non-corrosive magic vapor, won't it be only half as much exposed to the bad stuff?
bumpy

This from Bridgestone:
"Why do brand-new tires lose air pressure?
Air molecules are very small. And rubber, though it looks very solid, is, at the microscopic level, a sort of tangled, fishnet-like mass of long, stringy molecules.
Over time, air molecules can make their way through the maze of molecular chains and escape to the outside world. Basically, they go right through the sidewalls.
A truck tire can lose 2 psi per month, even when brand-new and properly mounted. That’s 24 psi a year, which would take any tire way below the run flat level. It’s another reason we place so much emphasis on regular inflation pressure maintenance."

Are we supposed to think air inside the tire is more corrosive than the air outside the tire?

travelzoo wrote:
I am often surprised at the number of people saying air leaks out of their tires. I can see over time loosing air pressure do to constantly checking the pressure, or seeing the pressure decrease on a cool day, but I just can't buy into it leaking out through the tire. I just put new tires on the motorhome 2 years ago and have never added any since installed. Tires before that were 6 years old and never had air added after install. Can someone point me to a place where it states brand new tires leak air? I have seen a lot of folks checking the tires that seem to let a lot of air out trying to get the chuck straight on the valve.

I can't point you to any documentation, I can only speak from experience. Early July we left for a trip, 1 campground 6 weeks. When we left, the tires were at normal operating pressure (75 front/8- rear). After sitting at the campground for 6 weeks, I needed to add air to every tire. Some just needed a pound, some needed 2 pounds.

Every vehicle I have ever owned needed air from time to time. I generally check tire pressure once a month or so.

-Michael

travelzoo wrote:
..I am often surprised at the number of people saying air leaks out of their tires. I can see over time loosing air pressure do to constantly checking the pressure, or seeing the pressure decrease on a cool day, but I just can't buy into it leaking out through the tire. I just put new tires on the motorhome 2 years ago and have never added any since installed. Tires before that were 6 years old and never had air added after install. Can someone point me to a place where it states brand new tires leak air? I have seen a lot of folks checking the tires that seem to let a lot of air out trying to get the chuck straight on the valve.

Used to be true. At one time tires regularly lost air through the rubber. Over the years manufacturing technology got better and rubber is no longer as porous as it used to be.

Just make sure-- whichever you use nitrogen or air-- that it is organically grown, free range, gluten free, and made in the U.S.A not China. Your tires will stay healthier.

All these formulas have given me a headache! Maybe the nitrogen in my brain is experiencing too much pressure? :B :h

Geocritter - Finally a GOOD reason for using nitrogen!

2112 wrote:
I can't believe this generated 4 pages!

Nitrogen discussions usually do create four or more pages.:)

I researched my compressed air needs about a year ago and decided to go with a cylinder of compressed nitrogen as opposed to a small air compressor. The reasons for my decision are:

A 40 gallon cylinder of nitrogen complete with valve is only 26”X6” so it takes up very little space, yet will completely fill four of my RV tires from flat. When it’s empty I can exchange the tank for a full one at a NAPA dealer for $17.

With 1,800psi cylinder pressure throttled down to 150psi air hose pressure it quickly replenishes pressure in the rigs tires, no constantly waiting for the air tank to repressure, as with a small air compressor (I’ll admit, having a large shop air compressor for years spoiled me. When I tried to switch to a smaller more portable compressor it was just plainly frustrating to use).

If I need to run an air tool such as an air impact wrench to remove one of the rigs Godzilla sized fasteners it’ll supply the needed pressure and volume to do it, maybe not for a long period of time, but long enough to start a few frozen nuts moving.

So far I’ve been very pleased with my decision.