nitrogen fill

Trodo · May 3, 2007

Okay, so I got my new tires, went with the BF goodrich. But they did the nitrogen fill, After letting them cool for several hours, I checked the pressure on them. 2 were correct 2 were way off.
Now I'd like to know...

Does nitrogen heat, increasing pressure as you drive, like compressed air does?
Can I fill with compressed air like I normally did, I'm sure on the trail, I'm not going to be looking for a nitrogen fill station.
Should the tires be running at the pressure they used to be, compressed vs nitrogen, or do they need to be at a higher or lower pressure.

Please help.

tjkj2002 · May 3, 2007

Trodo said:
Okay, so I got my new tires, went with the BF goodrich. But they did the nitrogen fill, After letting them cool for several hours, I checked the pressure on them. 2 were correct 2 were way off.
Now I'd like to know...

Does nitrogen heat, increasing pressure as you drive, like compressed air does?
Can I fill with compressed air like I normally did, I'm sure on the trail, I'm not going to be looking for a nitrogen fill station.
Should the tires be running at the pressure they used to be, compressed vs nitrogen, or do they need to be at a higher or lower pressure.

Please help.

Since regular air is 78% nitrogen then you can use regular compressed air with zero problems.Filling tires with nitrogen will not expand as much as regular air filled tires but can be costly,just stick with regular old air and you'll be fine and richer.

2003KJ · May 3, 2007

They should be at the same pressure that you would normally run them with regular air in them. Adding air to nitrogen generally doesn't hurt, but I have noticed on mine that it sometimes will throw them out of balance just slightly.

And as mentioned, Nitrogen doesn't expand and contract nearly as often as air, which is why if it's filled properly with nitrogen from the start, you rarely have to add air to them.

Trodo · May 3, 2007

Thanks guys.
I have noticed on the new tires, that the more knobby treads have made me slow down a little on turns and off ramps. But I can't wait to get out and use them.

2003KJ · May 3, 2007

I'm assuming you're running the A/T KO's?

Trodo · May 3, 2007

Yeah, I had a mental arguement over the long trail and the KO's about mileage, but I went with the look. I like it. Goodbye Goodyears...
Actually when there were working on them, and the front tires were off, there was a large amount of heavy sand on my front skid plate that hitched a ride back from the desert. Told the guys to vacum that up for me, they used a blower and messed their shop floor. At least it wasn't my garage.

2003KJ · May 3, 2007

Trodo said:
Yeah, I had a mental arguement over the long trail and the KO's about mileage, but I went with the look. I like it. Goodbye Goodyears...
Actually when there were working on them, and the front tires were off, there was a large amount of heavy sand on my front skid plate that hitched a ride back from the desert. Told the guys to vacum that up for me, they used a blower and messed their shop floor. At least it wasn't my garage.

Said goodbye to my crapyears a year and a half ago and havent looked back!

nitrogen fill

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