nitrogen tires

Hydrogen goes BOOM is true but its lighter than air so theres less tire drag giving the car an extra 5 mpg..its worth the risk

 

I want to congratulate you guys for turning a thread with a simple question into "nerds on parade". I believe we've found the next group of cast members for Big Bang Theory. (love that show)

 

Nitrogen in tires is one of several "hot button" topics, in this case conflated with H2 politics ..wild ride indeed!

 

Not sure if anyone mentioned it but Costco members can fill with nitrogen for free. You just need to pull up in front of their mechanic bays. There is usually a nitrogen hose that is meant for members to top off their tires.

From my observations, nitrogen leaks a lot slower than regular air in normal tire operation. Maybe 2x or more slower leakage.

 

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@martydallas - I can't guarantee every Costco will let you do that but the ones here in Southern Cal are OK with it.

If you can fit all the food for 70+ people into one trip on the Prime I think everyone will be impressed.

 

The conclusion you have reached is flawed; not supported by a wide range of facts.

 

Sure maybe 2x is stretching it but I do go long periods of time before I top off the tires (yes, I know that's not great but it is what it is). Ever since I started using nitrogen, there has been a noticeable difference in tire pressure loss. I'm saying something like going from 44 PSI (max tire pressure) down to 36 PSI over 3 months. Driving about 1K miles per month.I used to see pressure losses to below 30 with regular air in some extreme cases over approximately same period. This was all before Costco went to nitrogen by the way.

Remember, the tests quoted by Consumer Reports are for tires left sitting stationary outside for a year. I am only going by what I see in real world usage which seems to indicate to me that pressure loss is reduced quite a bit from normal air.

Bottom line is that since I can get nitrogen fill ups for free at Costco, I always try to take advantage of it. Their membership fees force me to try to take advantage of everything I can !!

 

Those tires stink.

With regular air I usually lose about 0.25psi per month.

 

Bridgestones. Yeah I know I should have gotten Michelins but the price delta was pretty large - at least the ones quoted by Costco.

 

Price difference ??

Even just starting out with nitrogen, topping up with regular air (mostly just my trusty bicycle pump), I see negligible air loss.

 

Mine are Bridgestone Ecopia 422.

 

I'm thinking it is the valve stems not the tires.

 

All time periods are not created equal.
Wet air in tires will appear to lose more pressure in the fall months than dry air will in the spring........again because of temperature differences, not because of actual gas permeation.

 

Even more likely to be the tire seal against the rim.