Tire Pressure Again
I know this has been discussed before. I could probably figure it out from searching the forum but I am in a rush to prepare for my first camping trip. I am also in a rush since I am going into the tr...
Forum Discussion
In addition to former post, that is the conclusion everytime this question pups up, but never prooved , so I did a test once.
Measured the pressure of cartire with about 1000 lbs on it,on a cold day on the ground , so ambiënt temp while test was the same, also inside tire temp because not driven yet.
Did 3 measurements , then yacked up the tire from the ground, so zero load on it, and measured 3 times again , then on the ground 3 times, off the ground 3 times and again on the ground 3 times.
During the test the pressure dropped a little because every time I pressed the cheap digital device agaist the valve , a little air escaped.
At the end the presssure on the ground was 1/2 psi lower then in the beginning on the ground. and measured pressure within some deveation the same.
so this prooves the argument that when more load on tire , the pressure stays the same .
You can take the spare to the punp and fill it to fi 65 psi , then mount it on the car and yack down the car so full load on tire, and pressure stays 65 psi.
Measured the pressure of cartire with about 1000 lbs on it,on a cold day on the ground , so ambiënt temp while test was the same, also inside tire temp because not driven yet.
Did 3 measurements , then yacked up the tire from the ground, so zero load on it, and measured 3 times again , then on the ground 3 times, off the ground 3 times and again on the ground 3 times.
During the test the pressure dropped a little because every time I pressed the cheap digital device agaist the valve , a little air escaped.
At the end the presssure on the ground was 1/2 psi lower then in the beginning on the ground. and measured pressure within some deveation the same.
so this prooves the argument that when more load on tire , the pressure stays the same .
You can take the spare to the punp and fill it to fi 65 psi , then mount it on the car and yack down the car so full load on tire, and pressure stays 65 psi.
