Setting the tire pressure

The friendliest place on the web for anyone with an RV or an interest in RVing!
If you have answers, please help by responding to the unanswered posts.
See posts with no answers
larrypowellnc

larrypowellnc

Well-known member
Joined
Jan 21, 2013
Posts
306
Location
Central NC
This time of year we are getting cold temps in the morning and warm temps in the afternoon.  I'm wondering what time of day to set my tire pressure.  I have seen tire pressure change at much as 5 to 10 psi from morning to afternoon due to the change in air temp. 
 
This may not be useful to you, but my solution to the problem was to replace my trailers load class C tires with load class D.  That way I could be sure of having the necessary pressure at their coldest without exceeding their maximum pressure specification when it warmed up.  Also, I like having a little reserve load capacity in my tires.
 
Speaking as an RV traveler, I recommend using the recommended tire pressures found on the tire placard as a guide for servicing before every travel day.
 
Agreed.  Set the pressure to the proper  level before your day's travel, regardless of time of day or temp, and do not reduce pressure when it warms up!  This is not a real exact science where 5 or 10 psi change from the base during the day will affect much.  What will affect tire performance is low pressure!
 
In the fall when it hits about 40 degrees I set my tire pressures. Then when summer arrives and it hits about 80 degrees I set them again. I check them all the time on trips but never add or remove air.

We've been on trips where we saw 40 to 105 degrees.  If I changed tire pressure every day I would not be a happy camper.
 
I fill all my tires to 95 psi. That seems to work best for my rig.  I check air pressure before each trip. Been doing this for years with no issues.
 
I'm wondering what time of day to set my tire pressure.  I have seen tire pressure change at much as 5 to 10 psi from morning to afternoon due to the change in air temp. 
Click to expand...

Time of day makes no difference, nor does the ambient temperature.  Set the tire pressure before you drive on the tires - that is the meaning of "cold" in tire lingo.  Yes, the tire psi will rise as the tire heats up, but you should neither worry about that nor try to anticipate it.  The tire engineers already took that into account when they designed the tire.
 
I set my tire pressures in the morning before a trip  before the sun hits the ones on that side. There is a pressure difference with a cooler tire.

An IR temp gauge makes a good quick check of tire heat which will rise with a soft tire, but you need to have a good idea what temps are normal.

I have yet to pressure check all my tires without losing enough air to wish I had a compressor to refill.
 
You must log in or register to reply here.

Latest posts

Members online

Total: 1,011 (members: 35, guests: 976)

Forum statistics

Threads
131,924
Posts
1,387,559
Members
137,674
Latest member
SPK550
Back
Top Bottom