Nitrogen-filled tires (1 Viewer)

[spikey]

How about hydrogen. Can you say Hindenberg? I knew you could.

 

[rusty_tlc]

Here's a good summary from the Tire Rack.

Tire Tech Information - Clearing the Air About Nitrogen Tire Inflation

Looks like they conclude no substantial benefit for those of us who wear tires out every couple years anyway. Benefits are mostly with vehicles in storage or very low mileage vehicles, or for those who never check tire pressure. And, for sure no increase in gas mileage just for using N.

So RV's, boat trailers, stuff like that? Hummm.

 

[OregonLC]

Not only consistent, but for me I've noticed that there is no change in pressure over time. With regular compressor air in 6 months or so I would have to check them and inflate them a few pounds. With nitrogen in them I haven't had a change in over a year. So, that may contribute to a better overall fuel economy.

I can't believe you can make it 6 months! I air up at least every-other month.

 

[Supra88]

Nitrogen shouldn't give you an increase. What it does is keep the air inside from expanding and contracting with the outside temp. Did you add a few PSI when you had the nitrogen put in the 4runner tires? Just a few PSI can help with MPG. Maybe the tires were a bit low before, then the shop filled them back up to spec w/ nitrogen. That would make more sense to me.

PV = nRT. Nitrogen pressure will go up as temperature increases and go down as temperature decreases just like air. I chuckle when I see people with the green caps.