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Topic Closedtire pressure

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GlueGuy View Drop Down
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Direct Link To This Post Topic: tire pressure
    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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offgrid View Drop Down
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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
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offgrid View Drop Down
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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
1995 RV6A Experimental Aircraft
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cosmo751 View Drop Down
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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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mcarter View Drop Down
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Direct Link To This Post 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
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