A guy at work had his Jeep Cherokee tires filled up with nitrogen for $10 and he claims to have picked up 1-2 mpg. Anyone had their Ram tires filled with nitrogen?

 

From what I've heard Nitrogen in the tires doesn't do s**t for you. He probably got the gain in MPG because he has been laying off it.

 

Just do a google on nitrogen in tires.

The only people that get any gain from it (not counting the additional expense) is people that let their air pressure way down or have them overfilled.

Next we'll hear about helium to make the truck lighter, LOL!

 

Air is 78% nitrogen anyway. Do you really think the extra 22% is going to make that much of a difference? Chances are he now has his tires properly inflated and they were low before, or he's paying more attention to his driving now so he's getting better mileage.

 

Now thats funny!

 

Actually filling your tires with Nitrogen is not a bad idea

1. Nitrogen is a inert gas which does not cause the rubber to breakdown as fast

2. Does not expand or contract as much as the other gases in air

3. Does not contain water, which is harmful to the rims and the rubber

Now is it worth ten bucks....I don't think so, and like the others have said if you keep your tires properly inflated your mileage and the life of your tires will remain constant Nitrogen or just plain old Air

 

I rotate my air every 3000 miles, rotate the tires every 6000

 

Don't forget to top off your blinker fluid at every fill-up.

 

Palm Beach County FL actually got a $350,000 grant from the US gov to test nitrogen in tires in their bus fleet over a multi-year period

Consumer's Reports magazine was initially very skeptical of this,
but in a test of tires mounted on a rack outside (not on real vehicles),
CR found that nitrogen leaked out of the tested tires slower than 'dry' air

I have not paid to have nitrogen in my tires
and prefer to wait to see what the official FL bus tire test finds

'Extraordinary Claims Require Extraordinary Proof'

is a wise saying

tank to tank MPG varies as much as 3 MPG
so your friend can be telling you what he believes to be true
and still be wrong about the 2 MPG gain with nitrogen in his tires,
or simply,
your friend just had one or more underinflated tires
that the nitrogen fill brought up to proper pressure

one thing is true from past testing:
even just a little water in the air fill of a tire is harmful
and as water goes from liquid to steam
there is a big pressure variation

 

A place here in town does it, and I know a guy that works there. He said it will break down your tires faster, and it will make your truck or car fill like a log wagon. So to find out, we put some in his, and he was right, it road like a wagon.