Go Back   EcoModder Forum > EcoModding > The Unicorn Corral
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-25-2015, 08:13 PM   #141 (permalink)
Master EcoModder
 
Join Date: Sep 2009
Posts: 5,927
Thanks: 877
Thanked 2,024 Times in 1,304 Posts
I rode a 1971 Honda CB350 200 miles on the original tires when they were 40 years old in 2011. Personally I think the old natural rubber was better. Seen Michelins dry rotted about the same in 6 years and no recourse from Michelin, WITH 90% OF THE TREAD LEFT.

I did ride very carefully, never above 45 mph and always sensitive to any change in ride quality.

regards
mech

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-10-2016, 11:57 PM   #142 (permalink)
EcoModding Lurker
 
Andrei_ierdnA's Avatar
 
Join Date: Jan 2016
Location: O Canada
Posts: 46

SmurFITte - '13 Honda Fit LX
90 day: 38.01 mpg (US)
Thanks: 45
Thanked 17 Times in 10 Posts
Found a good video on this topic:

Top 10 reasons not to put nitrogen in your tires

__________________
Real eyes
Realize
Real lies

  Reply With Quote
The Following User Says Thank You to Andrei_ierdnA For This Useful Post:
RedDevil (03-12-2016)
Old 03-11-2016, 10:06 PM   #143 (permalink)
EcoModding Lurker
 
Andrei_ierdnA's Avatar
 
Join Date: Jan 2016
Location: O Canada
Posts: 46

SmurFITte - '13 Honda Fit LX
90 day: 38.01 mpg (US)
Thanks: 45
Thanked 17 Times in 10 Posts
Quote:
Originally Posted by Old Tele man View Post
Nice B-S- explainations...
Why are his explanations BS?
They seem pretty legit to me. I don't mind his use of words to get the point across. He does throw the BS word around quite liberally.

Or is BS = Bachelor of Science?
__________________
Real eyes
Realize
Real lies


Last edited by Andrei_ierdnA; 03-11-2016 at 10:32 PM..
  Reply With Quote
Old 03-12-2016, 01:58 AM   #144 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
I like it, he points out that nitrogen does have slight advantages, but that those are trivial.

So air does indeed seep out slightly faster than pure nitrogen. That must be the oxygen in the air, the nitrogen stays behind.
If you crave the advantages of nitrogen over air, small as they may be, you'll get those anyway over time as the oxygen vanishes faster than the nitrogen does.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
Old 03-12-2016, 09:19 AM   #145 (permalink)
Master EcoModder
 
mcrews's Avatar
 
Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
Thanks: 2,203
Thanked 663 Times in 478 Posts
He is full of sxxt.

says the lose of air is because of bad seals or bad stems etc. THe person giving the example didn't say he got new tires. Just said that over the next 6 months the nito didn't lose as much pressure.
__________________
MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
  Reply With Quote
Old 03-12-2016, 10:07 AM   #146 (permalink)
EcoModding Lurker
 
Andrei_ierdnA's Avatar
 
Join Date: Jan 2016
Location: O Canada
Posts: 46

SmurFITte - '13 Honda Fit LX
90 day: 38.01 mpg (US)
Thanks: 45
Thanked 17 Times in 10 Posts
Quote:
Originally Posted by mcrews View Post
He is full of sxxt.

says the lose of air is because of bad seals or bad stems etc. THe person giving the example didn't say he got new tires. Just said that over the next 6 months the nito didn't lose as much pressure.
"But mate, you are wrong!"
Unless you pay for nitrogen in your tires and feel the need to justify the money well spent.

What I understood was that permeation is so small that it's essentially insignificant. And that if one loses considerable air from their tires, it's due to a leak and not air permeation.

Also the main point of the intro example is to show how biased, inconsistent and unscientific consumer opinions can be. Jimmy James from the example used "inaccurate air pumps" before and now only checks pressures 5 months later. So two bad practices which make his findings completely useless. 5 months later the season might have changed from winter to summer, so the temperature difference could make the pressure appear unchanged.
__________________
Real eyes
Realize
Real lies


Last edited by Andrei_ierdnA; 03-15-2016 at 12:11 AM..
  Reply With Quote
Old 03-19-2016, 12:16 PM   #147 (permalink)
Basjoos Wannabe
 
ShadeTreeMech's Avatar
 
Join Date: Apr 2009
Location: Arkansas
Posts: 870

The Van - '97 Mercury Villager gs
90 day: 19.8 mpg (US)

Lyle the Kindly Viking - '99 Volvo V70
90 day: 25.82 mpg (US)
Thanks: 174
Thanked 49 Times in 32 Posts
Um if I recall my chemistry class correctly nitrogen has an atomic weight of 14 and oxygen is at 16. So the nitrogen would be more likely to seep out unless there is an oxidation reaction occurring converting the oxygen into an organic oxide?
__________________
RIP Maxima 1997-2012


Quote:
Originally Posted by jamesqf View Post
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
  Reply With Quote
Old 03-19-2016, 02:49 PM   #148 (permalink)
Master EcoWalker
 
RedDevil's Avatar
 
Join Date: Dec 2012
Location: Nieuwegein, the Netherlands
Posts: 3,998

Red Devil - '11 Honda Insight Elegance
Team Honda
90 day: 47.72 mpg (US)
Thanks: 1,711
Thanked 2,245 Times in 1,454 Posts
Quote:
Originally Posted by ShadeTreeMech View Post
Um if I recall my chemistry class correctly nitrogen has an atomic weight of 14 and oxygen is at 16. So the nitrogen would be more likely to seep out unless there is an oxidation reaction occurring converting the oxygen into an organic oxide?
Atomic weight is not the same as atomic size.
The electrons are grouped in layers around the nucleus and more electrons just fill the voids in the outer layer. As there are more protons in the oxygen nucleus the pull is stronger too.
The combined effect means that the heavier oxygen atoms are in fact slightly smaller than nitrogen atoms. The science in the youtube vid is solid.

Oxygen does indeed seep out slightly faster than nitrogen. Which I checked by trying to light a match in a plasic bag I filled with air from a tire that had been aired years before. I could strike it but it would not burn.
When I blew the same bag up I could light and burn a match inside, even thoug the air I exhaled must have had slightly less oxygen than ambient air.
The air inside the tire had even less. Apparently it escaped over time and only the nitrogen stayed behind.

Oxygen seepage leaves you with increasingly pure nitrogen. Use air.
__________________
2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.


For confirmation go to people just like you.
For education go to people unlike yourself.
  Reply With Quote
The Following 2 Users Say Thank You to RedDevil For This Useful Post:
roosterk0031 (03-19-2016), UltArc (04-17-2016)
Old 04-17-2016, 12:59 AM   #149 (permalink)
EcoModding Lurker
 
Join Date: Apr 2016
Location: Arizona
Posts: 11

Marshmallow - '88 Ford LTD Crown Victoria LX
Thanks: 5
Thanked 5 Times in 1 Post
I'd like to put my $0.02 cents in on this matter- I work as a service valet at my local Volkswagen dealership. Customers often come in to have their tire pressures checked and tire dummy light reset. This service is provided free of charge. However, sometimes certain customers insist I fill their tires with nitrogen. We have a nitrogen machine in the shop, and I could do it, but it is expensive and nobody wants to pay for it. So my boss tells me to use regular air.

The way I see it, regular air is almost 80% nitrogen. Nitrogen is a colorless, odorless, neutrally buoyant fluid when released into the atmosphere. If I were to line up two identical cars, one car with nitrogen filled tires and one with standard air, there would be no appreciable difference between the two. So I do not feel bad about misleading the customers. Besides, it's free!

So, that's my two cents!
  Reply With Quote
Old 04-17-2016, 02:57 PM   #150 (permalink)
Master EcoModder
 
JRMichler's Avatar
 
Join Date: Feb 2011
Location: Phillips, WI
Posts: 1,013

Nameless - '06 GMC Canyon
90 day: 37.45 mpg (US)

22 Maverick - '22 Ford Maverick XL
90 day: 41.9 mpg (US)
Thanks: 188
Thanked 466 Times in 287 Posts
Try this: We use special 80% pure tire grade nitrogen".

__________________
06 Canyon: The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 33,021 miles 2016-2018 at 35.00 MPG.

22 Maverick: Summer 2022 burned 62.74 gallons in 3145.1 miles for 50.1 MPG. Winter 2023-2024 - 2416.7 miles, 58.66 gallons for 41 MPG.
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com