Ferrari Mailing List: Re: Tires from Costco

[Dennis Liu (bigheaddennis]

:-)

For the record, I don't go out of my way with nitrogen fills on street cars,
but racer friends swear by them, not because it's nitrogen, but because when
they fill from a nitrogen bottle, there is very little WATER VAPOR -- which
is the key reason why pressure increases with temperature; racers care about
that 1-3 PSI difference (between filling with Nitrogen and filling with
compressed air).

See also:

http://news.consumerreports.org/cars/2007/10/tires-nitrogen-.html

http://getnitrogen.org/why/

Bottom line, do I care about filling with nitrogen for street use?  No,
because I check my tire pressures religiously and top off all the time (and
adjust for seasonal ambient temp fluctuations).  But, hey, Costco doesn't
charge an extra fee for nitrogen (in an attempt to make a few more bucks off
you), so why not?  :-)

Vty,

--Dennis



-----Original Message-----
From: Doug and Terri Anderson [mailto:dnt [at] dock.net] 
Sent: Sunday, April 14, 2013 12:11 PM
To: BigHeadDennis [at] gmail.com
Cc: 'The FerrariList'
Subject: RE: [Ferrari] Tires from Costco

>> Dennis notes "They [Costco] use nitrogen to fill.

I told them that I use an 80% N2 mix.  Guys wanted to know how I did that. 
Complicated. Heh heh

DOUG