OFFROADSUBARUS.COM

Go Back   OFFROADSUBARUS.COM > Technical Forums > Tyres/Tires and Wheels

Notices

Reply
Thread Tools Display Modes
  #1  
Unread 23rd February 2019, 09:23 AM
jf1sf5's Avatar
jf1sf5 jf1sf5 is offline
Forum Member
 
Join Date: Aug 2012
Location: Geneva, Switzerland
Posts: 1,725
jf1sf5 is on a distinguished road
Default inflating the tires with nitrogen

Haven't tried yet but it seems that inflating the tires with nitrogen helps keeping them with the correct pressure, less leaks, as the nitrogen molecules are bigger (yes, 80% of the air is nitrogen but i'm talking 100% nitrogen) and there is no humidity in the nitrogen which keeps the tires less prone to pressure changes.
__________________
Subversive...
Reply With Quote
  #2  
Unread 27th February 2019, 03:23 AM
havachat's Avatar
havachat havachat is offline
Forum Member
 
Join Date: Jan 2013
Location: near Healesville Victoria Australia
Year: 2002
Model: Forester SG
Transmission: 1.447 low range 4.44 diffs
Posts: 928
havachat is on a distinguished road
Default

The percentage of nitrogen is actually 78%. Having said that are you going to carry a gas bottle to nitrogen up after nitrogen downing !! My tyre man who sells nitrogen says it is a complete waste of money.
__________________
Foz 2002 1.447 LR, 4.44 Diffs, 2004 XS & 2011 XS
Reply With Quote
  #3  
Unread 27th February 2019, 06:56 AM
NachaLuva's Avatar
NachaLuva NachaLuva is online now
Senior Member / Product Developer
Contributing Member
 
Join Date: Oct 2011
Location: SE Melbourne
Posts: 5,611
NachaLuva is on a distinguished road
Default

Quote:
Originally Posted by havachat View Post
carry a gas bottle to nitrogen up after nitrogen downing
haha that's brilliant!!!

Or is it nitrogening down?
__________________
SUBIELIFTOZ, QUALITY LIFT KITS FOR SUBARUS
1" & 2" lift kits; custom lift kits; all models
Reply With Quote
  #4  
Unread 27th February 2019, 08:31 AM
jf1sf5's Avatar
jf1sf5 jf1sf5 is offline
Forum Member
 
Join Date: Aug 2012
Location: Geneva, Switzerland
Posts: 1,725
jf1sf5 is on a distinguished road
Default

Quote:
Originally Posted by havachat View Post
The percentage of nitrogen is actually 78%.
78.084 % if you really want to be accurate

I don't think that a lambda person would see any difference, but in F1 or MotoGP, they actually use nitrogen to inflate the tires. Same for the shock absorbers of all makes. Its just a more stable gas less prone to leaking, but you're right, I wouldn't bother with a nitrogen bottle in the trunk for a vehicule used off road as we have to inflate and deflate the tires from time to time.
__________________
Subversive...
Reply With Quote
  #5  
Unread 27th February 2019, 06:31 PM
ABFoz ABFoz is online now
Forum Member
 
Join Date: Mar 2018
Location: Auckland, New Zealand
Year: 2005
Model: Forester XS
Transmission: 4EAT
Posts: 148
ABFoz is on a distinguished road
Default

Yes. For on-road use, they make a huge difference in terms of temperature stability. We have nitrogen yearly plans here offered by many tyre shops. You just have to drop by their shops to have the pressures checked/topped-up. That is OK for cars but I prefer like my air compressor even with on-road application.
Reply With Quote
  #6  
Unread 27th February 2019, 08:33 PM
Beachworm Beachworm is offline
Forum Member
 
Join Date: Oct 2017
Location: Brisbane Australia
Year: 2010
Model: Forester X Luxury, sump guard, bigger AT tyres and 50mm Subieliftoz lift, breather extensions
Transmission: Auto
Posts: 423
Beachworm is on a distinguished road
Default

The selling of nitrogen to inflate the tyres of normally used road cars (or off-road cars) is a classic case of upselling. It's like the Maccas server asking if you'd like fries with that. Proper scientific studies have been done that show there is no real practical advantage of nitrogen filled tyres unless you drive a high performance car (or bike) on the race track.

"The truth of the matter is that nitrogen does have some scientific advantages over air, but they lie at the upper reaches of the tire performance spectrum, and itís debatable if the average driver will reap any benefits from using nitrogen." https://www.tirebuyer.com/education/nitrogen-vs-air
Reply With Quote
  #7  
Unread 27th February 2019, 08:56 PM
ABFoz ABFoz is online now
Forum Member
 
Join Date: Mar 2018
Location: Auckland, New Zealand
Year: 2005
Model: Forester XS
Transmission: 4EAT
Posts: 148
ABFoz is on a distinguished road
Default

I completely agree, at least in my experience. I only ever used them on the race track during time trials/track days. After the warmup lap and with nitrogen, the tires would heat up but the pressure almost doesn't move or just moves up a bit, instead of jumping up to 4 to 5 psi with regular air. My lap times didn't change that much with the use of either as long as I run my preferred psi for the track/weather conditions.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -3. The time now is 06:38 PM.


Powered by vBulletin®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.