Tire Presures ... Hot and Cold
I know tires have recommended pressures listed on the sidewall and always assumed it is the hot number. Is there an average rule of thumb as to the temperature swings between hot and cold. 5, 10 or 15...
Forum Discussion
mscamping wrote:
You should have a placard some where in area of the driver's seat.. It will have the recommended PSI for your coach's tires.. I put 10# more for a safety factor.. I still check them before we start out in the mornings.. Mike Mathews..
Actually the PSI recommended on the GVWR plaque ASSUMES, repeat ASSUMES that each axle is loaded to its GAWR-- not over or under. That is what the plaque's PSI is calculated from.
If you are close to GAWR, the numbers are accurate. If (as you hope) you are well under GAWR so you have a safety reserve, the PSI is not what your tire manufacturer recommends as a minimum.
So the answer is the plaque PSI may be very close to WAY off depending on actual weight.
