my Tire Pressure Monitor yesterday morning indicated that my tires had low pressure. During the day and this morning it went away, so the low tire pressure was due to the temperature dropIs this something I should worry about?
It is best to set your cold inflation pressures in the morning (coldest time of day) so that way you are covered.
the correct tire pressure is given when the tires are cool. as in overnight sitting. it will vary while driving due to heating caused by temperature and speed and driving conditions.
Odin, I'm really happy you brought this up concerning temperature change and tire pressure. There is a better way to put your mind at ease. Although tire pressure monitors are a great idea you can maintain a much more dependable year round steady pressure by having all the air bled off your tires, purged (clean out of residual air) and re-inflated with pure nitrogen gas. More tire shops are offering this service these days which usually costs $5.00 per tire or less. More well healed tire shops have already invested in their own nitrogen producing machinery. Nitrogen is an inert gas. No moisture or dirt. The inner wheels don't corrode or rust, tire life goes up and ambient air temperature cold or hot, does not effect air pressure as readily as compressed air does. Here's the big plus selling point. Nitrogen molecules are enormous as compared to compressed air. Chances of bead leakage goes way down. It's a win win situation. Other than the added $5.00 cost there are absolutely no down sides to having your tires inflated with nitrogen.
