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Topic Closedtire pressure
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mcarter View Drop Down
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Joined: 07 Apr 2016
Location: Greenbrier, TN
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Posts: 3419 		Direct Link To This Post Topic: tire pressure
    Posted: 28 May 2019 at 4:52pm
+2 to OffGrid and Glue Guy. There are applications for Nitrogen inflated tires. If your plans don't include NASCAR and the Indy 500 with your TT, you'll probably be just fine. I do check my pressure regularly and check my lug nuts. I have D reated tires and I inflate to 65, per the sidewall.
Mike Carter
2015 178
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cosmo751 View Drop Down
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Posts: 39 		Direct Link To This Post Posted: 28 May 2019 at 4:34pm
Gonna have to recheck my Marvel Super-Duper calculator again.. LOL !
"He not busy being born is busy dying."
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offgrid View Drop Down
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Posts: 5290 		Direct Link To This Post Posted: 28 May 2019 at 11:15am
Originally posted by GlueGuy

Originally posted by crw8sr

"Damn it Jim!  I'm an Accountant not an Engineer!"  (Dr McCoy to Capt Kirk, sort of.) 
I can't wrap my head around all this talk about different gases.......I'll use a good gauge, check my tires and enjoy the view.   And hopefully not fall in the water without a spare tire.
I've always felt that nitrogen-filled tires concept was a bit of a scam. Not that it doesn't reduce the leakage, but whether it's worth the added cost and hassle. For the tiny amount of overhead of topping up your tires periodically, it's just not worth it. Plus, you still need to check the pressure regularly. 

+1. Nitrogen still permeates out so you have to check anyhow, even if you don't suspect a leak. 
1994 Chinook Concourse
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offgrid View Drop Down
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Posts: 5290 		Direct Link To This Post Posted: 28 May 2019 at 11:11am
Originally posted by cosmo751

Could be the price - If my rusty math serves me, filling with Krypton would  run around $120 per tire - the stuff is roughly $33.00 per hundred grams. If you'd like to try your own math skills use the formula for volume of a torus - Post your results - I could be wrong.

  Warning - my math is not that reliable.

KN

I get 3.74 grams/liter for Krypton at standard temperature and pressure so roughly around 20 grams in a tire at 65 psi, or maybe $6 a tire for a Krypton fill. Still way too expensive for me. Thumbs Down
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
2015 Rpod 179 - sold
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Posts: 2629 		Direct Link To This Post Posted: 28 May 2019 at 10:30am
Originally posted by crw8sr

"Damn it Jim!  I'm an Accountant not an Engineer!"  (Dr McCoy to Capt Kirk, sort of.) 
I can't wrap my head around all this talk about different gases.......I'll use a good gauge, check my tires and enjoy the view.   And hopefully not fall in the water without a spare tire.
I've always felt that nitrogen-filled tires concept was a bit of a scam. Not that it doesn't reduce the leakage, but whether it's worth the added cost and hassle. For the tiny amount of overhead of topping up your tires periodically, it's just not worth it. Plus, you still need to check the pressure regularly. 
bp
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crw8sr View Drop Down
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Posts: 328 		Direct Link To This Post Posted: 28 May 2019 at 10:19am
"Damn it Jim!  I'm an Accountant not an Engineer!"  (Dr McCoy to Capt Kirk, sort of.) 
I can't wrap my head around all this talk about different gases.......I'll use a good gauge, check my tires and enjoy the view.   And hopefully not fall in the water without a spare tire.
Chuck & Lyn
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cosmo751 View Drop Down
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Posts: 39 		Direct Link To This Post Posted: 28 May 2019 at 9:08am
And that is at standard temperature and pressure. Add a factor of 3 for 55psi and you just spent $960 to fill your two tires. I think - Dissenters please feel free to post your homework -

KN
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cosmo751 View Drop Down
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Posts: 39 		Direct Link To This Post Posted: 28 May 2019 at 8:58am
Could be the price - If my rusty math serves me, filling with Krypton would  run around $120 per tire - the stuff is roughly $33.00 per hundred grams. If you'd like to try your own math skills use the formula for volume of a torus - Post your results - I could be wrong.

  Warning - my math is not that reliable.

KN
"He not busy being born is busy dying."
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lostagain View Drop Down
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Posts: 2587 		Direct Link To This Post Posted: 28 May 2019 at 8:29am
It wasn't like that in the movies!  They held it in their hands and it stopped Superman in his tracks.  If it was in a movie, it must be true; like when I see it in the internet.  Wacko 
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offgrid View Drop Down
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Posts: 5290 		Direct Link To This Post Posted: 28 May 2019 at 4:24am
Originally posted by lostagain

And in its solid form [Kryptonite} it keeps Superman from pestering you while you're out camping.  He won't show up and want to change in your Pod.  Thumbs Up

You'll need a better fridge than your Dometic which barely keeps food cool. The freezing point of Krypton is about -250F. LOL
1994 Chinook Concourse
1995 RV6A Experimental Aircraft
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