John...same as yesterday. wrote:
On Thu, 02 Jul 2009 20:23:49 -0400, Wizard of Woodstock
wrote:

On Thu, 02 Jul 2009 19:50:17 -0400, John...same as yesterday.
wrote:

The local Toyota place will fill all the tires with nitrogen for $30.
Is it worth it? Thoughts?
Well, consider this - regular old air is 78% nitrogen, 21% oxygen, 1%
other gases and water vapor.

The advantage of nitrogen is that it won't diffuse through the rubber
because the molecule is bigger.

Personally, air is cheaper and mostly nitrogen anyway.

Hadn't looked at it that way. What I'd be doing is paying $30 for a
change of 22%. Hell, I'll probably be paying a lot more for 'change'
when my next income tax bill comes in.
--
John H


That would be true if they could remove all of the air from your tires
first. Even if they used a vacuum, it would never come close to 100%.