Notices
991
Sponsored by:

New cars nitrogen in tires?

 
Old 05-20-2018, 04:06 PM
  #1  
wareaglescott
User
Thread Starter
 
wareaglescott's Avatar
 
Join Date: Aug 2017
Location: Alabama
Posts: 1,014
Likes: 0
Received 3 Likes on 3 Posts
Default New cars nitrogen in tires?

My 2018 C2S came with green tire valve caps. Does that indicate they come filled from the factory with Nitrogen?
wareaglescott is offline  
Old 05-20-2018, 04:16 PM
  #2  
LexVan
Addict
Rennlist Member
 
LexVan's Avatar
 
Join Date: Jan 2013
Location: Chicagoland Area
Posts: 20,010
Likes: 0
Received 102 Likes on 55 Posts
Default

Probably. What did the dealer charge you for the nitro fill?

The key is dry air. Normal air is still +78% nitrogen.
LexVan is online now  
Old 05-20-2018, 05:00 PM
  #3  
Ed911.2
User
 
Join Date: Feb 2017
Location: Oxford, UK
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
Default

Iím just a little suspicious about the supposed benefits of having nitrogen inflated tyres. As Lex says above, nearly 4/5 of the content of air is nitrogen anyway.

If oxygen diffused/leaked out at a significantly greater rate, then after the first couple of times you pump your tyres up, it should be mostly nitrogen left, no?

The only real effect I can think of is that if there isnít any oxygen there, it canít react with the tyre or rim (perish or corrode).
Ed911.2 is offline  
Old 05-20-2018, 05:22 PM
  #4  
Al.Fresco
Addict
Rennlist Member
 
Al.Fresco's Avatar
 
Join Date: Feb 2016
Location: Connecticut
Posts: 1,379
Received 13 Likes on 8 Posts
Default

And unless you are willing to go to dealer or tire facility for top off with nitrogen for any needed adjustments, any air you use at home to top it off sort of defeats the purpose of using nitrogen.
Al.Fresco is offline  
Old 05-20-2018, 06:19 PM
  #5  
wareaglescott
User
Thread Starter
 
wareaglescott's Avatar
 
Join Date: Aug 2017
Location: Alabama
Posts: 1,014
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by LexVan View Post
Probably. What did the dealer charge you for the nitro fill?

The key is dry air. Normal air is still +78% nitrogen.
well ordered the car new. There was no additional dealer charge over the price of the car on the configurator minus my discount. I was assuming they caps came that way from the factory.
Donít really feel the need to have nitrogen in there as no car I have ever driven has had that. Mainly was just asking out of curiosity about the green caps.
wareaglescott is offline  
Old 05-20-2018, 06:36 PM
  #6  
Leader
Addict
Rennlist Member
 
Leader's Avatar
 
Join Date: May 2001
Location: Los Angeles
Posts: 2,025
Likes: 0
Received 0 Likes on 0 Posts
Default

The green valve caps mean nitrogen. Most likely, the dealer “topped off” your already inflated tires with nitrogen when prepping the car for delivery. I think it’s highly unlikely they bled your tires empty and refilled them completely with 100% nitrogen.
Either way, it’s far from necessary that you do future fill ups with nitrogen. Compressed air is just fine and available (for free) lots of places.
Leader is offline  
Old 05-20-2018, 07:51 PM
  #7  
drcollie
User
 
drcollie's Avatar
 
Join Date: Oct 2002
Location: Virginia
Posts: 1,448
Likes: 0
Received 10 Likes on 6 Posts
Default

Race teams use Nitrogen as the pressure stay more stable with heat in the tire.

For a street car the ONLY benefit to a Nitrogen fill is if you are storing the tires and wheels for a long period of time, prevents internal dry rot.
drcollie is offline  
Old 05-20-2018, 08:07 PM
  #8  
abe
User
 
abe's Avatar
 
Join Date: Nov 2007
Location: Thousand Oaks. CA
Posts: 1,188
Likes: 0
Received 0 Likes on 0 Posts
Default

So air is 78% nitrogen, 21 oxygen....rest is CO2 and miscellaneous gases. The benefit is a more constant pressure, no moisture/oxygen inside which means less chances of rusting the rims and less chance of tire rotting/damage. Now lets get real....the tire is constantly exposed to the elements....water, heat, oxygen ... from the outside. Do you think your tires are going to get damaged from the inside or the outside? Have you ever had anyone tell you that your tires where damaged from the inside and you should use 100% nitrogen in the future? Do you really think that the minimal expansion/contraction in tire pressure from air vs nitrogen is going to make a difference in you mpg or tire longevity?
If you are race driver and need perfect tire conditions at all times.....or landing a 747 ( do not want your tires to catch fire or have a blow out as your landing.)...it makes sense. But for the rest of us.....it is another way of someone making money off ignorant drivers.
IMHO
Abe
abe is offline  
Old 05-21-2018, 01:34 PM
  #9  
cyberay
User
 
cyberay's Avatar
 
Join Date: Aug 2006
Location: Martin County, Florida
Posts: 63
Likes: 0
Received 0 Likes on 0 Posts
Default

One argument in favor of nitrogen is its larger molecule size which allows for much longer periods between top-offs. The smaller molecule size of compressed air leaks through the rubber a lot more than nitrogen.
cyberay is offline  
Old 05-21-2018, 01:44 PM
  #10  
PatrickC23
User
 
PatrickC23's Avatar
 
Join Date: Aug 2015
Location: USA
Posts: 438
Likes: 0
Received 0 Likes on 0 Posts
Default

When I saw the $200 charge for Nitrogen on my bill I said No thanks. Pretty sure they gave it to me anyways. My caps are blue though, and have an N on them.
PatrickC23 is offline  
Old 05-21-2018, 02:55 PM
  #11  
oolor13
User
 
oolor13's Avatar
 
Join Date: Oct 2015
Location: Maryland
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
Default

If you use helium instead of nitrogen, does it makes your wheels 0.1% lighter?
oolor13 is offline  
Old 05-21-2018, 03:28 PM
  #12  
Ed911.2
User
 
Join Date: Feb 2017
Location: Oxford, UK
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
Default

I use run flats without any air at all - saves weight...
Ed911.2 is offline  
Old 05-21-2018, 05:14 PM
  #13  
eagle1960
Addict
Rennlist Member
 
eagle1960's Avatar
 
Join Date: Jan 2016
Location: TN
Posts: 165
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up

Originally Posted by abe View Post
So air is 78% nitrogen, 21 oxygen....rest is CO2 and miscellaneous gases. The benefit is a more constant pressure, no moisture/oxygen inside which means less chances of rusting the rims and less chance of tire rotting/damage. Now lets get real....the tire is constantly exposed to the elements....water, heat, oxygen ... from the outside. Do you think your tires are going to get damaged from the inside or the outside? Have you ever had anyone tell you that your tires where damaged from the inside and you should use 100% nitrogen in the future? Do you really think that the minimal expansion/contraction in tire pressure from air vs nitrogen is going to make a difference in you mpg or tire longevity?
If you are race driver and need perfect tire conditions at all times.....or landing a 747 ( do not want your tires to catch fire or have a blow out as your landing.)...it makes sense. But for the rest of us.....it is another way of someone making money off ignorant drivers.
IMHO
Abe
+1! This is one of the larger shenanigans' pulled be the tire companies to make money off something that provides no benefit. Nitrogen is beneficial in aircraft and race cars where fire is a major hazard and you don't want pressurized vessels containing any amount of oxygen close by. No one should ever pay for this for a street car.
eagle1960 is offline  
Old 05-21-2018, 06:26 PM
  #14  
spiderv6
Super User
 
spiderv6's Avatar
 
Join Date: Aug 2006
Location: NJ
Posts: 2,271
Likes: 0
Received 4 Likes on 1 Post
Default

One of my best ever buys was a compressor and a tire inflator.

No more hunting down a gas station with a working air pump, feeding it quarters, unable to read the gauge or realizing that it hasn't been calibrated in years and is only vaguely right.

Now I can do all the cars in the comfort of my own garage. One of those little things you buy and wonder why on earth you didn't do it before. If you already have a compressor - get one of these!!

spiderv6 is online now  
Old 05-21-2018, 10:28 PM
  #15  
chuck911
Super User
 
chuck911's Avatar
 
Join Date: Jun 2012
Posts: 4,518
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by abe View Post
So air is 78% nitrogen, 21 oxygen....rest is CO2 and miscellaneous gases. The benefit is a more constant pressure, no moisture/oxygen inside which means less chances of rusting the rims and less chance of tire rotting/damage. Now lets get real....the tire is constantly exposed to the elements....water, heat, oxygen ... from the outside. Do you think your tires are going to get damaged from the inside or the outside? Have you ever had anyone tell you that your tires where damaged from the inside and you should use 100% nitrogen in the future? Do you really think that the minimal expansion/contraction in tire pressure from air vs nitrogen is going to make a difference in you mpg or tire longevity?
If you are race driver and need perfect tire conditions at all times.....or landing a 747 ( do not want your tires to catch fire or have a blow out as your landing.)...it makes sense. But for the rest of us.....it is another way of someone making money off ignorant drivers.
IMHO
Abe
Actually its 78% nitrogen, 21% oxygen, 0.93% argon and the rest are all trace elements, measured in parts per million. The only reason anyone assumes CO2 is because we've all been barraged with global warmist lies for so long its hard not to believe there must be a lot of CO2. But no, its parts per million. A small percent of a small percent. 0.04% to be precise, just 4% of 1%. Pretty much meaningless, or for sure swamped into noise by everything else. Actually putting nitrogen in your tires, as slim a difference as it might make, at least it might make a difference. Unlike the whole CO2 thing.
chuck911 is offline  

Thread Tools
Search this Thread
Quick Reply: New cars nitrogen in tires?


Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: