Go BottomExperiment Checking pressure in liquid filled tires
 | Boomerang
Join Date: Oct 2004 Posts: 4 
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2005-03-21 108489
I've seen a lot of posts regarding the proper method used to check the air pressure in liquid filled tires. I wanted see for myself if there was a variation in air pressure.
I started with 15-19.5 R4 tires filled just above valve stem with water/anti freeze mixture.(valve stem should be covered to prevent corrosion).
#1. valve stem up & tire raised off ground - 12 psi
#2. valve stem down & tire raised off ground - 12 psi
#3. valve stem up & tire resting on ground - 12 psi
#4. valve stem down & tire resting on ground - 13 psi
I then put valve stem at top and let out liquid until only air came out of valve stem. I repeated steps #1-#4 got the same results.
I hope this test will clear up some confusion regarding the proper method used to check air pressure in liquid filled tires.
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 | DRankin
Join Date: Jan 2000 Posts: 5116 Northern Nevada 
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2005-03-22 108504
I would agree that you can get an accurate reading at any valve position.
However, I have also found that when you get you tire gauge full of whatever is in the tires it goops it up and doesn't work so good next time. ....
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 | harvey
Join Date: Sep 2000 Posts: 1550 Moravia, NY 
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2005-03-23 108589
When checking fluid filled tires you need a pressure guadge made for fluids. Your better tire shops with tractor tire repair can direct you where to buy locally. ....
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