Nitrogen (again)
in [Toyota]
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From: ---MIKE--- on 18 Oct 2009 12:15 I know this has been discussed before but I would like more opinions on using nitrogen in tires. It would seem that where air is 80 percent nitrogen it would be foolish to pay extra for "pure" nitrogen in your tires, Comments please. ---MIKE--- >>In the White Mountains of New Hampshire >> (44° 15' N - Elevation 1580')
From: SMS on 18 Oct 2009 13:44 ---MIKE--- wrote: > I know this has been discussed before but I would like more opinions on > using nitrogen in tires. It would seem that where air is 80 percent > nitrogen it would be foolish to pay extra for "pure" nitrogen in your > tires, Comments please. Probably doesn't make sense to pay extra for it, but Costco includes it at no extra charge. They also are usually the least expensive tire retailer not only for the base tire price but for the mounting/balancing/road hazard/stems (though that cost has gone up a lot recently). Costco has a vested interest in using nitrogen. They actually honor the manufacturer's tire warranties, and they include road hazard coverage at no additional cost. Using nitrogen lessens the probability of tire failure significantly, especially if the customer never checks the tire pressure and tops it off.
From: ron on 18 Oct 2009 15:00 I believe I read somewhere that pure nitrogen is less affected by heat is one of the (supposedly) reasons race drivers use it. I usually re-tire at Costco too so have had it in previous tires (but michelin doesn't make the right size 19" for my Highlander) ron
From: Mike Hunter on 18 Oct 2009 16:00 As someone said the air inside the tire, as well as the air OUTSIDE of the tire, is already nearly 80% nitrogen. ;) "ron" <randus3(a)teranews.com> wrote in message news:MBJCm.8298$f64.676(a)newsfe13.iad... >I believe I read somewhere that pure nitrogen is less affected by heat is >one of the (supposedly) reasons race drivers use it. > > I usually re-tire at Costco too so have had it in previous tires (but > michelin doesn't make the right size 19" for my Highlander) > > ron
From: dr_jeff on 18 Oct 2009 17:44
Mike Hunter wrote: > As someone said the air inside the tire, as well as the air OUTSIDE of the > tire, is already nearly 80% nitrogen. ;) Air has something that nitrogen doesn't have: water. Water can condense or evaporate, causing changes in the pressure of the tire faster with air than with nitrogen. And, water can also be absorbed and released by the rubber of the tire. So tires that are filled with nitrogen tend to maintain a steadier pressure than tires filled with air. However, the difference is pretty small; IMHO, not worth the extra cost. (Note: If you're a NASCAR crew chief, please disregard what I said. The differences are important for NASCAR cars.) |