Keep Accurate Tire Pressure

Monday, April 9, 2012 by Alex Mouroulis

Many people don't consider the role tires play on their vehicle. Your tires make contact with the road and the total contact area is about the size of a sheet of paper. Tire sidewalls are extremely pliable and soft; the entire load of your vehicle is carried by the air that fills the tires.

For every 10-degree Fahrenheit shift in ambient air temperature, you can expect a fluctuation of 1 psi in tire pressure. Also, you'll lose on average 1 psi per month just from regular driving. A high quality air gauge or tread depth gauge will help you maintain accurate pressures, maximize your vehicle's tire wear and fuel efficiency.
 

Accutire Digital Set Point
Accutire Digital Set Point Programmable Air Gauge
Dill Digital Tread Depth
Dill Digital Tread Depth
Gauge
Intercomp Deluxe 4 inch
Intercomp Deluxe 4" Air Pressure Gauge


It's important that you adjust your air pressure in the morning before you drive more than a few miles, or before rising ambient temperatures or the sun's radiant heat affects it. For more information on the importance of maintaining sufficient air pressure, read "Air Pressure, Temperature Fluctuations."

Comments on Keep Accurate Tire Pressure

Tuesday, November 25, 2014 by Dawes Wilson:
I read the link "Air pressure, Temperature Fluctuations" and it was interesting. I had researched this a bit already but still have some questions. I live in the mountains of Colorado so the temperature fluctuations are huge. Many days 40-50 degrees F. There is the additional variable of altitude, the pressure differences between Vail 8K, Vail Pass 10.5K and Denver 5K are also huge. Same advice sticker inflation in the morning?
Thursday, December 4, 2014 by Alex:
Here is a great article on just that topic. http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=167

A rule of thumb is to take your base camp temperature, subtract the coldest temperature you'll encounter. Divide that number by 10 - add this amount of air pressure cold to your stock inflation pressure. Do not exceed the MAX air pressure rating on the tire's sidewall. I hope this helps.

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