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Old 04-16-2011, 02:31 PM   #57
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We monitor our tire pressures each towing day. We read all four trailer tires before starting the drive and every half-hour or so during the drive. Our tires pressures increase by 5-8 psi from 60 psi starting. We don't need to improve on this condition, it's working just as expected.

Yeah, our tires pressures vary with ambient temperature. So what? We have a compressor, a gauge, and tpms. If the cold starting pressure is below 55 we'll add air -- happens rarely to us. The cold starting pressure has never exceeded 65 in seven years.

It really doesn't seem to matter what or whether N2 does for our tires. We're only keeping them five to six years, we monitor them a whole lot better than most motorists even watch their own car tires. N2 for trailer tires is a solution looking for a problem.

I would like green caps, though. Maybe I can just swap with some sports car in the car park. Will they think someone took their N2 too?

Ken, wouldn't helium be almost as fun as H? Maybe easier to obtain, still lowers the total unit weight, plus you could have fun at campfires sucking it in and talking the duck voice.
Actually, Hyodrogen can be quite entertaining around the campfire.

Take turns taking a deep breath of it, and then see if you can exhale directly into the fire quickly enough to escape injury. I recommend going last.

Ken
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Old 04-17-2013, 08:34 AM   #58
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Consumer Reports says their tests show that nitro is a waste of money. My local Chevy/Caddy dealer puts nitro in everything on their lots as a way of up selling. My original tires came with nitro and three years and 42k later, they're doing fine. Not sure I'll put nitro into the replacements unless the shop throws it in at no cost. I do like the stability of tire pressures on towing days with big elevation and temperature changes.
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Old 04-17-2013, 09:03 AM   #59
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A good deal if it is free. There are benefits when using Nitrogen but not enough if you have to pay for it. A tire store chain (can't recall the name) checks my tires and refills with Nitrogen for free.
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Old 04-17-2013, 09:19 AM   #60
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How about some facts:

Barry's Tire Tech
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Old 04-17-2013, 09:25 AM   #61
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By golly, the link to that web page was worth the price of admission (as the saying goes).
Many thanks. I always wondered about those nitrogen claims.
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Old 04-17-2013, 09:50 AM   #62
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So it looks to me like the most efficient thing to do would be to just buy some green tire valve caps if you just have to have them.
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Old 04-17-2013, 09:54 AM   #63
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Waste of money. Our Accord came with them, but guess what? If you check them, you lose a little pressure each time, and since you probably don't have compressed nitrogen sitting around at home, you have to refill them with regular air - who wants to run to the dealer every time you need the tires inflated? Ours did give us a low tire warning around 10,000 miles. I check and refill them regularly with normal compressed air.
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Old 04-17-2013, 10:05 AM   #64
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Waste of money. Our Accord came with them, but guess what? If you check them, you lose a little pressure each time, and since you probably don't have compressed nitrogen sitting around at home, you have to refill them with regular air - who wants to run to the dealer every time you need the tires inflated? Ours did give us a low tire warning around 10,000 miles. I check and refill them regularly with normal compressed air.
Agreed 100%! I just bought an Accord. While it didn't come with nitrogen, at least it doesn't have green caps, I just got a flyer saying since I am now such a valued customer that one of the benefits is having my tires filled with nitrogen in the future for free.

One thing nobody talks about is that the tire is full of air when it is mounted. The only way to get pure nitrogen would be to pull a vacuum on the tire/wheel assembly like done during air conditioner service. Frankly, I don't think I want my tires subjected to that. (As if that would ever happen. )
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Old 04-18-2013, 02:52 PM   #65
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I forget where but I found a set of four green caps two years ago. My tires have stopped wearing, I get better traction, and they never change temperature. These green caps are the greatest.

Jim
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Old 04-18-2013, 03:18 PM   #66
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One thing nobody talks about is that the tire is full of air when it is mounted. The only way to get pure nitrogen would be to pull a vacuum on the tire/wheel assembly like done during air conditioner service. Frankly, I don't think I want my tires subjected to that. (As if that would ever happen. )
When I bought my truck I was assured that the tires were mounted on the rims in a pure nitrogen environment by an automated tire mounting system and that no air was in the tire.
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Old 04-18-2013, 03:35 PM   #67
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I forget where but I found a set of four green caps two years ago. My tires have stopped wearing, I get better traction, and they never change temperature. These green caps are the greatest.

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When I bought my truck I was assured that the tires were mounted on the rims in a pure nitrogen environment by an automated tire mounting system and that no air was in the tire.


Too bad the space shuttle is not in service anymore. They could have mounted a tire machine in the bay and gone into business mounting tires in space and then filling them with nitrogen.
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Old 04-18-2013, 04:40 PM   #68
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I put helium in mine. Reduced the tongue weight of my Argosy by 25 pounds!
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Old 04-19-2013, 09:32 AM   #69
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Nitrogen is air for all intents and purposes other than respiration. I am going to have to get me some of this selling air as something other than air thing. This is the best dang air you are ever going to find. I invented if myself. It took many years to invent air. Sounds like Mr Haney on Green Acres.

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Old 04-19-2013, 09:48 AM   #70
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Nitrogen is air for all intents and purposes other than respiration. I am going to have to get me some of this selling air as something other than air thing. This is the best dang air you are ever going to find. I invented if myself. It took many years to invent air. Sounds like Mr Haney on Green Acres.

Perry
Hey, they do it with water....why not.
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