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  #13  
Old 10-29-2012, 01:46 AM
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Re: Winter/Summer Tire Pressure

Nitrogen, air (which is a blend of gasses) ... doesn't matter. They will all follow Boyle's law - meaning the pressure will go up or down the same amount based on temperature. This used to be taught in basic Junior High science - I have no idea what they waste time teaching now.
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Old 10-29-2012, 06:10 AM
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Re: Winter/Summer Tire Pressure

Quote:
Originally Posted by netcoolery View Post
Nitrogen, air (which is a blend of gasses) ... doesn't matter. They will all follow Boyle's law - meaning the pressure will go up or down the same amount based on temperature. This used to be taught in basic Junior High science - I have no idea what they waste time teaching now.

+1

I'm amazed at how many suckers there are in the world. Paying to have nitrogen put in your tires LOL!

It reminds me of the guys who went around getting signatures for a petition to ban dihydrogen monoxide. They argued it was the principal component in acid rain and if inhaled in large quantities could cause death. They got tons of people to sign the petition to ban it. Dihydrogen monoxide is water. Too many freaking morons in the world.

To the original poster. Just put 36 psi in the tires cold during these transition periods to cover the temperature swings. A few extra psi won't hurt anything.
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Old 10-29-2012, 08:56 AM
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Re: Winter/Summer Tire Pressure

I use air. It's free at the corner convenience store and has served me well since I started driving many years ago. I add 1 to 2 lbs above manufacturer recommended 60 degree F. about this time of the year to compensate for air contraction at colder temperatures.
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Old 10-29-2012, 09:09 AM
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Re: Winter/Summer Tire Pressure

^^agree, although i do love filling with nitrogen since it's free and close by (Costco membership!)

- Just make sure your tires are at 36-37 psi when COLD!

- Go fill them up to like 38-40 depending on how far you have to drive.

- Come home, let it sit overnight and cool down then check your PSI again next morning.

- Any that are way too high, bring them down. I leave mine at 37 so that in the winter the fluctuations shouldn't impact it much.

- Invest in a good digital tire pressure gauge!
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